State if each triangle is acute, obtuse or right

What is the solution to the system of the equations? x = y - 3 x + 3y = 13

Isee the amount was $90.00 then reduced to $75.00 , what is the percent ?

Ateacher has $80 to buy workbooks. each work book cost $3. if she buys as many workbooks as possible, how much money does she have leftover? a) $2 b) $4 c) $6 d) $8