Let f(x)=-2x+4 and g(x)=-6x-7. find f(x) - g(x).

School has 204 sixth grade students. if the sixth grade is 30% of the total school, how many students are in the middle school?

Rob spent 25%, percent more time on his research project than he had planned. he spent an extra h hours on the project. which of the following expressions could represent the number of hours rob actually spent on the project? two answers

Angles r and s are complementary. the measure of angle r is 31 degrees. which equation can be used to find angle s?