Mark is 15 years younger than Ashley. The sum of their ages is 55. What is a system if equations to find their ages?

How do you graph a fraction?

5x + 3 = 7x - 1 what is x

If sec (x) = 25/24, find cotangent (x)

Solve the equation, 4 - (x + 1) = 6.

Killer whales in the Pacific are about 2.6 m long at birth. They grow at a rate of about 0.38 m per year, up to the age of 10 or more years. A marine biologist finds and rescues a 5-meter-long killer whale stranded on a beach.

An insurance company makes money according to earnings = p (e1) w1 + p (e2) w2, where p (e1) = 0.002641, w1 = - $25,000, p (e2) = 0.997359, and w2 = $193.08. How much does the insurance company earn during the year from this person?

Write an expression that represents the products of q and 5 divided by 2

What digit is in the ten-thousands place in the number 81,473

How to solve 7/9 - 2/3

A scientist is measuring the temperature change and a chemical compound the temperature dropped 11 Fahrenheit per hour from the original temperature after four hours the temperature was 90°F find the compounds original temperature