Chris earned a 56, 90, and a 71 on his first 3 math tests. His goal is to have an 85 average in his math class. He has 7 tests remaining. What must he average on the 7 remaining tests to reach his goal?

14+12=-15x+2x solve for it

An experimenter is randomly sampling 3 objects in order from among 48 objects. What is the total number of samples in the sample space? 17296 14190 311328 103776 85140

Gas prices are up 30% since last year when they were $4.35, how much is gas now?

The area of a rectangle is expressed as (12m+18) square feet. If the width is 6 feet, write an expression to represent the length of the rectangle

The variable Z is directly proportional to X. When X is 3, Z has the value 57. What is the value of Z when X = 8

A true-false question is to be posed to a husband and wife team. Both the husband and the wife will give the correct answer with probability 0.8.

A half-mile of road will be marked with a combination of yellow dashes that are 10 feet long and gaps that are 2 feet wide between dashes. How many yellow dashes must be painted on that part of the road? Note: 1 mile = 5,280 feet. 660 220 264 1,320

Naomi drank 3/4 of a 20.8 ounce container of apple juice. How may ounces of apple juice did naomi drink

Do the phases of the moon follow a pattern

How many solutions are there? =n-7