Which expression has a value of 51?

(50+10) : (5+5)

(50+10) : 5+5

50 + (10:5+5)

50+10: (5+5)

Which are the like terms in 4x3 - 7x2 + x + x3?

Divide by 2, and then subtract the sum of 9 and 4

Insert, or = between the given pair of numbers to make a true statement. - |-11| - (-11)

Each day a runner trains for a 10km race. On the fisrt day she runs 1000m, and then increases the distance by 250m on each subsequent day.

Rashida was paid $720 for 30 hours of work. How much would she be paid for 40 hours of work? A. $750 B. $760 C. $960 D. $2880

Kevin is buying a cover for his circular swimming pool. If the diameter is 20 feet, how much material will it take to cover the pool? Use 3.14 for pi. 31.4 ft2 62.8 ft2 98.6 ft2 314 ft?

One recipe for pancakes says to use 1 1/2 cups of mix to make 7 pancakes. How much mix is needed to make 35 pancakes

A dump truck brought 1/3 of a ton of rock on the first trip, 1/2 of a ton on the second trip, and 4/5 of a ton on the third trip. What was the total weight of the rock?

A manufacturer of yoga pants sells them for $28 each. They hired some consultants who determined that the cost of manufacturing x pants was C/left (x/right) = x^2-2x-9 C (x) = x 2 - 2 x - 9.

The perimeter of the sign is 28 meters. If the width of the sign is 4meters, what is the length in meters?