Which is an equivalent form of the equation 3x-3y=15
a. y=x-5
b. y=x+5
c. y=5-x
d. y=-5-x

Lisa has three classes that each last 50 minutes. what is the total number of minutes of the three classes

The weight of full–grown tomatoes at a farm is modeled by a normal distribution with a standard deviation of 18.4 grams. the 95 percent confidence interval for the mean weight of the tomatoes is calculated using a sample of 100 tomatoes. what is the margin of error (half the width of the confidence interval)?

Satchi found a used bookstore that sells pre-owned dvds and cds. dvds cost $9 each, and cds cost $7 each. satchi can spend no more than $45.