I need some simple equations that equal 12,20,21,31.

2 x squared + 13 x = 0

In which section of the graph does the actual solution to the system lie y>x/3 y

Consider the sequence below. 3, 1, 1/3, 1/9, ... Select the explicit function which defines the sequence.

Sihui and Mark have $16 altogether. If Sihui has $2 more, she will have half as much as Mark. How much money does each of them have? (Use the elimination method to show the solution set)

Write 7 and 4/5ths as a decimal.

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.

29, 19, and 29 triangle as acute, right, or obtuse.

Dean ran 1 2/5 miles. Sheila ran three times as far as Dean. How far did Sheila run?

3m=5 (m+3) - 3 what is m equal to?