How to write an equation for the transformation of y=x vertical stretch by a factor of 4

An object travels 4/5 mile in one half hour what is it's speed in miles per hour

Solve for x. x - 8 = - 10 x = 2 x = - 2 x = 18 x = - 18

Samantha went shopping for a new dress. Last week she saw it being sold for $75. When she returned to the store today, she saw the price had increased up to $95. What is the percent of increase? (Round final answer to the nearest tenth)

What is 6,334 divided by 3 including the remainder

What is the difference between an unit rate and ratio?

Describe two methods you can use to write an equation of a line given its graph

Marianna wants to buy a new tennis racket that costs $57.50. She has $8 and plans to save $4.50 each week. How many weeks will it take her to save the money?

Select the expression that equals-3 - (-5). A - 3 + (-5) B - - 3 + (-5) C - - 3+5 D - 3+5

X and Y are independent random variables. X is normally distributed with mean 1 and variance 1. Y is normally distributed with mean 3 and variance 5. What is the variance of Y - 2X?

Simplify - 2/3 - 3/5.