Question

question 19 (1 point)
(20 - 3)×5+9
o a 84
o b 1984
o c 94
o d 77
question 20 (1 point)
6×(2 + 4)-10
o a 25
o b 14
o c 106
o d 26
question 21 (1 point)
(11 + 2)-(3×3)
o a 15
o b 3
o c 23
o d 4

Explanation:

Step1: Solve parentheses for Question 19

$20 - 3=17$

Step2: Multiply the result by 5

$17\times5 = 85$

Step3: Add 9

$85+9=94$

Step1: Solve parentheses for Question 20

$2 + 4=6$

Step2: Multiply by 6

$6\times6 = 36$

Step3: Subtract 10

$36-10 = 26$

Step1: Solve parentheses for Question 21

$11 + 2=13$ and $3\times3 = 9$

Step2: Subtract the second result from the first

$13-9 = 4$

Answer:

Question 19: C. 94
Question 20: D. 26
Question 21: D. 4