Which expression is the best estimate of the product of 7/8 and 8 1/10? a. 0x8 b. 1x10 c. 7x8 d. 1x8

Ill mark the brainliest if you me with the these three questions 7,8,9

When keisha installed a fence along the 200 foot perimeter of her rectangular back yard, she left an opening for a gate.in the diagram below, she used x to represent the length in feet of the gate? what is the value? a. 10 b. 20 c. 25 d. 30

A50-foot ladder is leaning against a vertical wall. if the base of the ladder is 45 feet from the base of the wall, find the angle the bottling of the ladder makes with the ground.