Please help :3

Find the area of a rectangle with dimensions
3/8 ft x 3/4 ft.

Translate the word phrase into a math expression. 15 fewer than the product of 4 and a number. (pls immediately)

Gretchen is setting up for a banquet. she has 300 chairs and needs to distribute them evenly among t tables. how many chairs should she put at each table? write your answer as an expression.

Solve: 3x+y=6 4x-2y=18 show all work !