Wrapping paper comes in 3 colors, on either a regular roll or an extra wide roll, and with or without a pattern. How many combinations are in the sample space

Solve each quadratic equation by factoring and using the zero product property. n^2 - 49 = 0

From the beginning of the day the temperature rose 15 degrees so that by 4 pm it was 87 degrees. what was the temperature at the start of the day

The number of calories you burn depends on your weight. a 110-pound person burns 163 calories during 30 minutes of tennis. find the number of calories that a 190-pound person would burn during the same activity, assuming they burn calories at the same rate.