How determine if it is proportional

Kendall is planning to buy a laptop for $1,200 each months she double the amount she saved the previous month if she saves $20 the first month in how many months will Kendall have enough money to buy the laptop?

As jupiter revolves around the sun, it travels at a speed of approximately 8 miles per second. convert this speed to miles per minute. at this speed, how many miles will jupiter travel in 5 minutes? do not round your answers.

First step in solving this problem 1/6 (4x-1) = -8x

If the selling price is $18 and the markup is 33% what is the dollar markup

If f (x) = 3x-4 and f (a) = -10, then a=? f) - 2 g) - 1 h) 0 j) 1 k) 2

Evaluate and simplify tan 15º.

5y - 3z + 4y - 1z - 3y; y = 3 and z = - 2

An architect represents a 9 inch height as inch on a scale drawing. Which of the following scales did the architect use? 1 foot = inch 1 foot = inch 1 foot = inch 1 foot = inch

86% of senators support a bill. What fraction of senators support the bill?

Lettuce is packaged in four bags to a box. if there are 3.5 boxes of lettuce in a cooler, how many bags of lettuce would there be?