7x+(-7)=9x-7 what is the answer?

At a point on the ground 50 meters from the foot of a tree, the angle of elevation to the tree is 48°. find the height of the tree to the nearest meter.

Select the correct answer from the drop-down menu. this graph represents the inequality x+2< 4,2x> 3,x+6< 12,2x> 12

Maria walks a round trip of 0.75 mile to school every day.how many miles will she walk in 4.5 days