Jen guessed there were 127 marbles in the jar. the jar contained 132 marbles. to the nearest tenth of a percent, what is the percentage of error for jens guess?

Tanya has $42 to spend at the dolphin island store. tshirts sell for $7 each and a pair of sunglases sells for $6.tanya buys 3 tshirts. how many pairs of sunglases can she buys with the amount of money she has left

Precalculus question, image attached.

The base of a pyramid is a square with 5 lines of 5cm the slant height of each lateral face of the pyramid is 6 cm what is the surface area of the pyramid