What is n-10+9n-3 because i lost my calculator and my teacher didn't teach this yet

A mountain climber ascends a mountain to its peak. The peak is 14,090 ft above sea level. The climber then descends 490 ft to meet a fellow climber. Find the climber's elevation above sea level after meeting the other climber.

Find the absolute value l-63.89l=?

Write an expression to represent the sum of triple a number and 15

Bought three books: 150, if one book cost 50% more than the other two combined what was the price of the more expensive book

How much better is the return on a 11% yearly interest rate investment that is compounded quarterly (4 times per year) as opposed to compounded yearly?

Simplify, 4 (2n+3) - 3 (n+1) remember collect like terms

What is quadratic equation? Can you give me an example?

Flora has 22 vases. Each vase has 6 tulips and 9 carnations. Which expressions correctly show how to find the total number of flowers? Choose exactly 2 answers that are correct. A. 22 * (6 + 9) B. (22 * 6) + (22 * 9) C. (22 + 9) * (22 + 6) D.

For the expression 6 + y - 3, determine the coefficient for the variable term. A: - 3 B: 0 C: 1 D: 6

What is the difference between 4/5 and 1/4