When the new computer lab opened, there were 18 computers. by the end of first week, there were 25 computers. find the percent of change in the number of computers? round your answer to the nearest tenth, if necessary. a. –38.9% c. 38.9% b. 72% d. 33.3%

38.9% Option c.

Step-by-step explanation:

When the new computer lab opened, there were 18 computers.

By the end of first week, there were 25 computers.

The increase in numbers of computers = 25 - 18 = 7 computers

The percent of change =

                                      =

                                      = 38.888 ≈ 38.9%

The percent of change would be 38.9% in the number of computers.

16

step-by-step explanation:

2 x 40 = 80

80/5

= 16

step-by-step explanation:

given expression is .

now we need to simplify the given expression .

we know that square root is equivalent to the power 1/2. so that means we can take half of the exponents to get the square root of given expression.

expanding that will give a very very large number so let's keep answer in exponent form.