Kyle has 125 marbles. fifty of these marbles are red and the rest are other colors. what is the ratio of the number of red marbles to the total number of marbles expressed in simplest terms?

Find and classify the slope of the line through each pair of points. (2,,-16)

Sunday: 1 1 2 monday: 1 tuesday: 2 1 2 wednesday: 1 3 4 thursday: 2 friday: 1 1 2 saturday: 2 jenna is a swimmer and trains every day. the schedule shown outlines the number of hours she trains each day. what is the total number of hours that jenna trains during the week?

The size of a certain cell is 2.5*10^-9m. another cell is 1.5*10^3 times larger. how large is the larger cell in scientific notation?