12.5% of what number is 20

Haley is twice as old as Riley. The sum of their ages is 39. Write an equation that represents (x), Riley's age.

A cats catnip toy is on sale for 10 percent off the regular priceof 3.30 find the sale price

What is the repeating decimal 0.242424 ... as a fraction in simplest form?

Janelle made a fruit cake using bananas and apples. Forty percent of fruits are bananas. If she used a total of 120 fruits, how many apples should she use

The same charity organization from problem 6 has to pay $4,700 for the banquet hall as well as $110 per plate for each ticket sold. What equation models the total amount spent as a function of the number of tickets sold?

8 22/66 in lowest terms

The exponential function y (x) = ce^ax satisfies the conditions y (0) = 2 and y (1) = 1. find the constraint of c and a. what is y (2) ?

Ten children equally share 60 almonds. How many almonds will 5 children get?

The game of European roulette slots: 18 red, 18 black, and I green. A ball is spun onto the wheel and will eventually land ina slot, where each slot has an equal chance of capturing the ball. Gamblers can place bets on red or black.

What is the equation for an arithmetic sequence with a first term of 6 and a second term of 2?