Anna got 45 answers correctly out of an unknown number of questions which was 90% correct. How many questions were there?*
5 or
55 or
60

Samantha is growing a garden in her back yard. she spend $90 setting up the garden bed and buying the proper garden supplies. in addition, each seed she plants cost $0.25. a. write the function f(x) that represents samantha's total cost on her garden. b. explain what x represents. c. explain what f(x) represents. d. if samantha plants 55 seeds, how much did she spend in total?

There were 25 students who answered to a survey about sports. four-fifths of them like football. how many students like football?

Which best explains why this triangle is or is not a right triangle ?