Choose the correct product of (7x − 3)(7x + 3).

Product of the expression is 49x² - 9.

Step-by-step explanation:

We have to find the product of (7x - 3)(7x + 3).

As we know the formula (a -b)(a + b) = a² - b²

So we replace the values of a = 7x and b = 3

Then (7x - 3)(7x + 3) = [(7x)²- (3)²]

= 49x² - 9

Therefore, product of the expression is 49x² - 9.

b. x- 48 =120

step-by-step explanation:

ruth is 6 years old

step-by-step explanation:

6 + 24 = 30,   so 6/30 = .2  

if you do 1/5 it also equals .2, so that is the answer.