Simplify 5√7+√7−2√7
a.4√7
b.3√21
c.3√7
d.4√21
i really am stuck on this problem.

5√7+√7−2√7

Going from left to right:

5√7+√7 = 6√7

6√7 - 2√7 = 4√7

The answer is A. 4√7

hello :

by applying the distributive property :

6 × 4.3 = 6 × ( 4 + 0.3 )

            =   (6 ×   4) + (6 ×   0.3)

            = 24 + 1.8

6 × 4.3 = 25.8

0.0076, if you meant 4.125 divided by 0.03125 it would be 132

step-by-step explanation:

first you have to move the decimal in 0.03125 over until its behind the 5 which is 5 places over. now the number is 3125

then you have to move the decimal in 4.125, 5 places over. now the number is 4,112,500.

now you divide like you would normally would and get 0.0076