Which correctly shows how to use the gcf and the distributive property to find an expression equivalent to 45 + 72? 3(15 + 24) 9(5 + 8) (5)(9) + (2)(36) (3)(15) + (8)(9)which correctly shows how to use the gcf and the distributive property to find an expression equivalent to 45 + 72? 3(15 + 24) 9(5 + 8) (5)(9) + (2)(36) (3)(15) + (8)(9)

equivalent expression is 9(5+8)

Step-by-step explanation:

45 + 72

We find out the GCf for 45  and 72

GCf is greatest common factor

45 ---> 1, 3, 5, 9, 15, 45

72 >  1,2,3,4,6,8,9,12,18,24,36,72

Greatest common factor is 9 for both 45  and 72

We use GCf 9

When we factor out 9 then we divide both numbers by 9

45 divide by 9 is 5  and 72 divide by 9 is 8

45 + 72 becomes 9 (5+8)

So equivalent expression is 9(5+8)

$20.01

step-by-step explanation:

the sale price is (1.00 - 0.77)($87), or 0.23($87), or $20.01.

f(x) = - 2/3x + 5; f(5/2)

substitute 5/2 in for x:

f(5/2) = -2/3(5/2) + 5

simplify the right side:

f(5/2) = -5/3 + 5

f(5/2) = 10/3

answer:

f(5/2) = 10/3

i hope this you!