**Answer:**

10. log**5**625 = 4

12. log**1/2**8 = -3

14. log**10**10000 = 4

**Note: bolded numbers are bases and are written like exponents but at the bottom. **

**Answer:**

198

**Step-by-step explanation:**

112/56=2

(2 is the unit rate)

99*2=198

**Answer:**

D: 19 should have been subtracted from, not added to, both sides of the equation.

**Step-by-step explanation:**

Because if we subtract 19 from both sides, we directly get the value of x.

**Equation:-**

x + 19 = 34

Subtracting 19 from both sides,

=> x + 19 - 19 = 34 - 19

=> **x = 15**

Joys age is x

x + (x-4) = 74

2x = 78

x = 39

joy is 39 years old

**Answer:**

95*4=380

**Step-by-step explanation:**