1.what is the simplified form of each expression?

7x^–8 × 6x^3

a. 42/x^5
b. 1/42x^5
c. 42x^11
d. 13x^–5

(–2x8) · 3y9 · 2x4

a. 3x^12y^9
b. –12x^72y^9
c. –12xy^21
d. –12x^y^9

2. find the simplified form of the expression. give your answer in scientific notation.

(8 x 10^7) (7 x 10^4)

a. 1.5 × 10^12
b. 5.6 × 10^12
c. 1.5 x 10^29
d. 5.6 x 10^29

(7 × 10^–4)(9 × 10^–10)

a. 6.3 × 10^–13
b. 63 × 10^–13
c. 6.3 × 10^–15
d. 6.3 × 10^–16

Ques 1)

A)

         We are given a expression as:

It could also be written as:

  Option: a is the answer.

B)

which is solved as follows:

Ques 2)

A)

The expression is:

It is solved as:

                 Option: b is the answer.

B)

On simplifying:

                   Option: a is the answer.

cells do need food. in a process known as cellular respiration, cells convert biochemical energy (oxygen as food) from nutrients into adenosine triphosphate (atp), and then release waste products.

hope this .. : d

whose power in the senate is equal to the power of the speaker of the house?

step-by-step explanation: