How to determine if a number is prime or composite

Benson asked a group of 9th, 10th, 11th, and 12th graders the number of hours they work per week in the summer. The means of each group are provided below: 9th: 14.2 hours 10th: 18.8 hours 11th: 21.2 hours 12th: 24.

Find three consecutive integers such that three times the third is the same as 2 les than the sum of the first and second

8; 1.05; 1.2; 0.75 fr least to greatest

Is a negative decimal always, never or sometimes equal to a positive decimal

X^2+3x-4=0 Quadratic formula

2x + 3y = - 14 y = 6x + 22

3$ is what percent of $12

If f (x) = x + 1/x, find f (1+3i)

The area of the small triangle is 10.5 meters squared and the area of the larger triangle is 94.5 meters squared. if the altitude of the large triangle is 9, what is the altitude of the smaller triangle

A rental car cost a total of $282 for a week. six students shared the car. how much should each pay? a. $48 b. $35 c. $50 d. $47