Estimate. then find each product. simplify.

a. 4 3/5 x 2/3

b. 6 x 2 2/7

c. 7 4/5 x 2 1/3

d. 3 3/4 x 2 4/5

e. 2 1/5 x 7/8

f. 6 1/3 x 1 5/6

answer in order.

Haruka hiked several kilometers in the morning. she hiked only 66 kilometers in the afternoon, which was 25% less than she had hiked in the morning. how many kilometers did haruka hike in all?

If f(x) = 3x2 - 2x+4 and g(x) = 5x + 6x - 8, find (f-g)(x).

What is the sum of these mixed numbers 4 2/3+ 3 1/9