Answer:
6a + 13
Step-by-step explanation:
2a + 4a = 6a
8 + 5 = 13
6a + 13
Answer:
oh 21
Step-by-step explanation:
1 times 12 is 12 and 3/4 times 12 is 36/4 =9. 9 plus 12 is 21
Answer:
3
Step-by-step explanation:

for future problems use symbolab or wolframalpha
they give answers more accurately and quicker
<u>Answer:</u> 90%
<u>Reasoning:</u> To solve this divide 18 by 20
18/20= 0.9
Now multiply 20 by 0.9 to check
20 x 0.9= 18