The answer would be 80. I'm pretty sure. You would multiply the money amount and how much she bought.
The answer is d 3/8 hope i helped
I didn't really get the which part because we shape it to serveral factors, this is one of them
first, distribute -6 to (2b + 1), giving you -12b - 6, and then on the another side of the equation, distribute -2 to (5 + 4b) giving you, -10 - 8b. now we need to put our coefficients on one side so we will add 8b to each side of the equation, giving us -6 = -10 - 8b + 12b, then we will add 10 to both sides of the equation giving us, 10 -6 = -8b +12b, this gives u 4 = 4b. then, you would solve for b, which equals 1.
The answer is 7/16 hoped this helped :)