Answer:
12.6
Step-by-step explanation:
The question requires you to estimate the product of 0.12 * 105
12/100 * 105 ----multiply 12 and 105
12 * 105 = 1260
Divide the answer by 100
1260/100 = 12.6
a = 4
STEP 1) 4a - 16 = 4 • (a - 4)
hope its right lol
You should get 13