Evaluate the expression when a=2 and c=-5. 8a-c=

100x-200>50x-75 solve for x

How many tens and 15 ones equals 6 tens and 5 ones

A circle has a radius of √ 13 units and is centered at (-9.3,4.1) Write the equation of this circle.

How to solve for y 6x+3y=9 and 3x+2y=9

A company has committed to giving an 800 dollar donation as well as a continuing donation of 150 dollars a month to a local food pantry. Write an expression for the amount the company has donated after m months.

Ms. Donaldson earns $18.00 per hour for the first 40 hours she works in a week. She earns 1 1/2 times that amount per hour for each hour beyond 40 hours in a week. Last week Ms. Donaldson worked 45.5 hours. How much money did she earn?

The circumference of a circle is 5 π cm. What is the area of the circle? 25 π cm2 10 π cm2 6.25 π cm2 2.5 π cm2

John drives to the beach which is 270 miles away from his house. In 2 hours, he drives 120 miles. If he continues at that speed, how long does it take him to get to the beach

I can't figure it out f (-14) = f (-12) =

what is the solution to log2 (9x) - log2^3=3?