Martha estimated there were 86 marbles in a jar for a contest. The actual number of marbles in the jar was 108. What was the percent error of Martha's estimation?

Evaluate f (x) = x^2 + 1 for f (-1)

An online ticket seller charges $44 for each ticket to a concert plus a fix and handling fee of 12 to find the define the unknown variables and write the equation to model the situation

8 - (-11) = ? ...

What is the measure of an exterior angle of a regular 7-sided polygon? Enter your answer as a decimal in the box. Round to the nearest tenth of a degree. (-2,5), (6,7), (7,4) on grah

What is the number 8 in scientific notation?

A bookcase measures 13 feet wide and 24feet tall. What would the bookcases measurment be on a scale drawing using the scale 3cm:2 ft

Combine like terms 3x, - 2y, 4xy. 3, 7y, 4, - 9y, 1/3x, - 5, - 1/4xy

What will be the total cost of Devon's first year? How much financial aid will Devon receive for his first year? Devon plans to attend college. He has estimated the costs for his first year.

Mallory is on a budget and wants to determine which cereal is a better buy. A 10-ounce box of cereal costs $2.79, and a 13-ounce box of the same cereal costs $3.99. i. Which box of cereal should Mallory buy? ii.

A soccer team made $575.75 from selling popcorn at a concession stand during a tournament. The popcorn cost the team $65.00.