The sum of two numbers is 30 and their difference is 20

Receive for cupcakes cakes for 2/3 cup of chocolate chips for a batch of 2 dozen brownies. How many chocolate chips will be needed to make eighteen brownies? Thx

George jogged downhill at 6 mph and then jogged back up at 4 mph. If the total jogging time was 1.25 hours, how far did he jog in all?

A small hose fills a swimming pool in 20 hours. A large hose connected to a different water supply feels the same pool in 12 hours. With the pool empty the owner turns on the smaller hose at 6 AM. He turns on the larger hose it 8 AM.

Two standard number cubes are thrown, one after the other. What is the probability that the first cube lands showing a 4 or greater and the second cube lands showing a 4 or smaller?

Which is equivalent to 2 5/6 A. 5/3 B. 7/6 C. 17/6 D. 12/5

You earned $15 on Monday and will earn more money tomorrow., where d is the money you earn tomorrow, represents your total earnings for the two days.

Ralph spends 15 1⁄3 hours per month playing tennis. How many hours does he play tennis in a year? (There are twelve months in a year.)

The small city of Wimberly, Tx has a population density of 185 people per square mile and a land area of 16.1 square miles. What is the population of Wimberley?

What are the zeros of the polynomial function f (x) = x^3-x^2-6x

Complete the equation of the line through (3,-8) and 6,-4). Use exact numbers. y=