Out of these numbers which ones are prime:

41, 71, 21, 61, 31, 91, 11, 81, 51

A customer pays $3.27 for oranges and $4.76 for pears. How many pounds of fruit does the customer buy?

Find the slope and y-intercept of each line. y = 5

Write in standard form. 7.51x 10 with exponet 3

Solve the equation by substitution (show work) 2.5x-3y=-13 3.25x-y=-14

Each week Lance drives two routes, route A and route B. One week he drives route A five times and route B twice. He drives a total of 181 miles that week. The week after, he drives route A twice and route B three times.

A planes trajectary from toronto to montreal is represented by this equation h=-2.5t^2+200 h = hieght of flight and t = time of flight. How long would the flight from toronto to montreal last?

A small refrigerator is a cube with a side length of 14 inches. Use the formula S = 6s2 to find the surface area of the cube.

Tom got 38 Valentine's mike got 42 Steve got 51 and Charles got 29 what was the average number of Valentine's each one got?

Nathan Perez earned $220 in simple interest in 9 months. What is his account's annual interest rate if he deposited $4,000?

Is 0.7 equal to less than or greater than 7/9