have this done correctly for brainiest​

A house costs $18,000, which is 9/10 the cost of a car. A motorcycle costs 1/5 the cost of the car, or 4/5 the cost of 100 cards. How much is the cost of 30 cards?PLZ PLZ PLZ PLZ PLZ HELP!!!!!!!!!!!!! can someone help me with this (6) (7)I need a step by step process. The length of a rectangle is 4 inches greater than the width. The perimeter of the rectangle is 24 inches. What are the dimensions of the rectangle A number decreased by 22 is 44. Which equation can be used to solve this problem Which of the following relationships represents joint variation? Explain how John Marshall helped to develop the meaning of the Constitution in Dartmouth College v. Woodward? Please dont steal points..thanks!! Rewrite the expression in the form a^n are these two photos the same? or is there a difference? Which conjugation isnt correct?yo _______hagosalgooygo vengo HELP ME ASAP PLZ !!!!!!! Select the correct answerGiving brainliest Which structures do historians believe influenced the design of early pyramids in Egypt?a)ziggurats of Mesopotamiab)obelisks of Nubiac)coliseums of Romed)palaces of China mice & men chapter 4 characters Andre and Elena are solving this system of equations. Y=3xY=9x-30Andres first step is to create a new system:3y=9xY=9x-30Do you agree with either first step?A-both strategies workB-only the first strategy worksC-only the second strategy worksD-neither strategies work. What is the percent increase ???? Help please The space shuttle design team spent two years working with sketches and models before building the shuttle. Why were these steps important? 1.Sketches and models allowed for the design to be modified before investing huge amounts of time and money to build the actual shuttle.2.Sketches and models allowed for many different astronauts to provide input on the design of the shuttle before investing money in the actual shuttle.3.Sketches and models helped astronauts in their training program as they prepared for their missions. Choose all the answers that apply.Which of the following are types of changes that can happen in the rock cycle?igneous to sedimentarymetamorphic to sedimentaryigneous to metamorphicsedimentary to metamorphicmetamorphic to metamorphic what two numbers multiply to -36 and add up to 5 Please help fast!! Is this a function?