Answer:

Step-by-step explanation:
To solve this operation we need to find the common multiple of both denominators and solve for a.

Thus, the solution is 7(a -1) / (a+2)(a-5)
Answer:
A. 48
B. 24
C. C
Step-by-step explanation:
To divide up whole numbers by fractions, you simply need to just multiply the whole number by the reciprocal of the fraction. in other words, flip the fraction.
Ex.
12 ÷ 1/4
=
12 x 4
Ex. 2
12 ÷ 1/2
=
12 x 2
486 - 9 + 6 + 3³ · 2 = 477 + 6 + 27 · 2 = 483 + 54 = 537