We are trying to solve for 2t-8 for t=21. My son thinks it's 84. I don't see how that is. Making sure I don't guide him down the wrong path!

The final velocity, V, of an object under constant acceleration can be found using the formula v^ (2) = v^ (2) + 2as, where v is the initial velocity (in meters per second), a is acceleration (in meters per second), and s is the distance (in meters).

Demarco wrote two correct variable expressions to represent the phrase "the product of a number and 7." Which of these variable expressions could Demarco have written? Choose exactly two answers that are correct. Question 1 options: a. n x 7 b. 7n c.

You get paid £10 per hour. You work 7 hours a day. You work 5 days a week. How much is your total pay each week?

Find the percent of increase from 12 pencils to 18 pencils.

In high school Matt grew from weighing 95 pounds to 162 pounds. What was Matt's change in weight during high school

Which of the following are roots of the polynomial function F (x) = x^3 - 5x^2 - 13x - 7 A. 7 B. 3 + Square root of 2 C. 1 + square root of 3 D. - 1 E. 1 - square root of 3 F. 3 - square root of 2

Calculate the slope for coordinates (3,2) (4,6)

If the coordinates of a polygon graphed in the first quadrant with one vertex on the origin are (0,0), (a, 0), (a, a), (0, a), then what is the most precise name for the polygon?

A student read a total of 72 books over the course of a year. Since there are 12 months in a year, how many books did the student average each month?

A rectangular parking lot has a perimeter of 232 feet. The length of the parking lot is 36 feet less than with. Find the length and width