When a variable are immediately next to each other with no symbol between them, what operation is implied

Simplify 9 - {x - (7 + x) }

Problem page a delivery truck is transporting boxes of two sizes: large and small. the large boxes weigh 45 pounds each, and the small boxes weigh 15 pounds each. there are 120 boxes in all.

What is the surface area of the square pyramid? enter your answer in the box. cm² square pyramid net consisting of a square and four triangles. the square has length and width of six centimeters.

Selena needs to rent a car. The car rental company gives him two options. Option A is to pay $28 a day plus $0.15 a mile and option B is to pay $12 a day and $0.40 a mile.

Solve 15x+3y=9,10x+7y=-4

20 min to drive between two roads at average speed 45 mph how far apart is the town

What is 2+2 i need to know

A track and field playing area is in the shape of a rectangle with semicircles at each end. The perimeter of the track is to be 1200 meters.

Nicole has a stack of 50 dishes to wash. It took her 2 minutes to wash 8 dishes. At this rate, how long will it take Nicole to wash all 50 dishes?

Jack bought 5 pounds of holloween candy. He gave out 3 pounds of the candy to trick or treaters and ate 10 ounces of the candy. How many ounces oof halloween candy does jack have