X+ y = 12
x - y = 4

use elimination method(8th grade math)
show work pls answer

Two angles are complementary. the large angle is 36 more than the smaller angle. what is the measure of the large angle?

Boris needs to buy plastic spoons. brand a has a box 42 spoons for $2.37. brand b has a box of 72 spoons for $3.57. find the unit price for each brand. then state which brand is the better buy based on the unit price. round your answer to the nearest cent.

Drag each tile into the correct box. not all tiles will be used. find the tables with unit rates greater than the unit rate in the graph. then tenge these tables in order from least to greatest unit rate