Write n times x using only addition

Sec (a) + tan (a) = sec (a) - tan (a)

When the sum of two whole numbers is multiplied by the difference of the numbers, the result is 85. If the difference of the two numbers is not 1, what is their sum?

In an arithmetic sequence, the first term is a1=12 and the common difference is d = 5. Which is the value of the eighth term, a8?

A student has gotten the following grades on his tests. What is the minimum grade he must get on the last test in order to have an average of 77?

Solve for x. (x - 8) (x - 8) = 0

In gym class, you run one mile you finish 89/10 minutes. Ina finishes in 8.45 minutes. Davis finishes in 81/3 minutes order the finishing times from shortest to longest time.

Y=-2x+11 what is the slope of the equation?

You run 1 3/4 mile each day your friend runs 4 times as far as you do how far does your friend run each day

What is 42% of 16?

What is the common ratio of the sequence? -2, 6, - 18, 54,.