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)

if the pizza is divided equally into 2 equal halves then you would get

πr^2/2

where r is the radius of the pizza.

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its totaly b

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