(ax+3) (5x^2-bx+4)=20x^3-9x^2-2x+12 the equation above is true for all x where a and b are constants. what s the value of ab?

11

step-by-step explanation:

32.50-7.50=25

225/25=11

7 ft 6 in means 7 1/2, because 6 in is 1/2 of a foot. 7 ft 8 in means 7 2/3 because 8 in is 2/3 of a foot. 23/3 = 7 2/3. 15/2 = 7 1/2.

23/3   *   15/2   = 57 1/2

step-by-step explanation:

question: how many people can she serve?

answer: she can serve 16.66666667 people. so she can only give 16 people a complete serving.

question: does she have enough ice cream for her guests?

answer: no. explanation: she only has enough for 16 people to have a full serving. however, she can give a 17th person a partial serving.

-22

times both sides by 2, times () by 8, add alile terms, move terms, add alike and caculate divide both sides by 3