Simplify the expression and combine like terms. -3(4y-10)+2(3y+9)

This is so harddd! solve. 1 + 1 = solve 4 + 4 = solve 3 x 3

Need this asap if anyone can i would be very grateful. if you could show workings that would really

Jacob signs up to work for 2 1/2 hours at the school carnival. if each work shift is 3/4 hour, how many shifts will jacob work? (i just want to double check : |, for anybody that responds! : )