must fill out whole sheet, and you don't have to explain, just the answer will be fine. 100 points + brainliest for best answer

1.a    2 + 22s          

1 b.  -6a + 8            

2a.  81r + 18            

2b.  132+ 50p          

3a.  -36 - 4r              

3b. 40 + -25m          

4a. 6+16r              

4b.  -28z + 7          

5a.   96y - 40

5b.   -99u -72

6a. 77 - 63m

 6b.  -40 - 35p

  7a. -72v + 6d

7b.   -45b - 9c

not sure but it may be b, as i said i'm not sure.

the solution of the equation is 2.23 ⇒ answer b

step-by-step explanation:

* lets revise the meaning of exponential function

- the form of the exponential function is y = ab^x, where a ≠ 0, b > 0 ,  

  b ≠ 1, and x is any real number

- it has a constant base b

- it has a variable exponent x

- to solve an exponential equation, take the log or ln of both sides,  

  and solve for the variable

* lets solve the problem

∵

- the base is 7 and the exponent is x

- insert ㏑ in both sides

∴

- use the rule

∴ x ㏑(7) = ㏑(77)

- to find x divide both sides by ㏑(7)

∴

* the solution of the equation is 2.23 to the nearest 2 decimal places