Beatrix ate 21 raisins. this represents 30% of the box of raisins. how many raisins were originally in a box

Mrs. morton has a special reward system for her class. when all her students behave well, she rewards them by putting 3 marbles into a marble jar. when the jar has 100 or more marbles, the students have a party. right now, the the jar has 24 marbles. how could mrs. morton reward the class in order for the students to have a party?

How to find the exponential function y=ca^x, with points (1,2) and (2,1)

What is the measure of angle 1? a.28 b.152 c.168 d.64