Which should be calculated first to solve this problem?

West's mother gave him $40 to spend at the toy store to buy presents for his cousins. West already had $20 saved from doing errands. West bought 3 toy trucks for $9.99 each and a basketball for $8.99. West had to pay 9% tax on his purchases. How much did West spend?

A.
the cost of 3 basketballs

B.
the total cost of one toy trucks and one basketball

C.
the amount of tax paid

D.
the cost of 3 toy trucks

hello from mrbilldoesmath!

answer:

the domain is the set { -2, 0, 2, 3}

discussion:

the domain is the set of x values in the ordered pairs (x,y). taking the x, or first component, of each ordered pair gives   -2, 0, 2, 3.

you,

mrb

no because after the troops were pulled many blacks were killed by hangings lynchings and other cruel ways which in a way interrupted the reconstruction of the south and differed from the way abraham lincoln had an idea of reconstruction