Ralph and Sandra baked cookies. They gave half of all their cookies to their classmates. Then they gave half of what was left to their teachers. They then ate the remaining 12 cookies. How many had they made all together?

Simplify this exponent 10^7

How many terms are in the arithmetic sum 15 + 18 + 21 + ... + 99? n = 1,653 n = 28 n = 27 n = 29

What is the next term for the geometric sequence 108,36,12

In Charlie's family, two people have blue eyes, and three people have brown eyes. Write a fraction to represent the part of the family that has blue eyes.

2. The following formula relates three quantities: Force (F), mass (m), and acceleration (a). F = ma (a) Solve this equation for a. (b) Let the force be F=minus 25 units and the mass be m = 10 units.

The last square of the chessboard is square 64. How many pennies are on square 64?

Im going to buy huaraches in womens (7.5) so do i order that size or order an 8?

Ms Cooke bought 9/10 of a cake. She ate 2/5 of her cake. How much cake left.

The average of 4 number is 85. if three of the numbers are 76, 78, and 81 what is the fourth number.

Aiden and Ryan are collecting clothes for a shelter. Ryan collected 1/4 as many clothes as Aiden did. If Aiden collected 12 bags of clothes, which expression below could you use to find out how many bags of clothes Ryan collected? a. 12 : 1/4 b.