Iq scores between 90 and 109 are considered average. Assuming IQ scores follow a normal distribution, what percent of people are considered average?

A local Humane Society houses 300 animals. The ratio of cats to all animals is 7 : 15. a. Write a proportion that gives the number of cats c. b. How many cats are in the Humane Society.

Business women Maya spends 1/4 hours a day on her cell phone. Her husband Larry spends 3/16 hours a day on his cellphone. What is the total time spent on the phone between the couple per day?

Are the lines with equations 2x - 3y = 8 and - x + 4y=2 parallel, perpendicular, or neither

The jones family is taking a trip from seattle to san diego CA over the course of 3 days. They plan on traveling 200 miles more on the second day than they will on the first day.

the price of a guiter was decreased by 15% and sold for 275.99. what was the orignal price of the guiter in dollers?

Solve ln (5x+18) = ln (12x+4)

Chloe gets paid $8 per hour to work as a lifeguard. This weekend, she worked on both Saturday and Sunday. She made a total of $72. Chloe worked for 4 hours on Saturday, For how many hours did she work on Sunday?

Evaluate 6t - 20 - 32u when t = 6 and u = 1/4

Write an expression to match the words. (12*2) + (4*3)

What is the expanded form of 3x (x+3) ^2?