80 degrees because it decreases by a half each time so by the time it is E (the fourth letter) it has gotten to 20 so the answer is 160
0.5a - 0.3 = 5
Add 0.3 to both sides:
0.5a = 5.3
Divide both sides by 0.5:
a = 10.6
Step-by-step explanation:
Hey there!
We can again, do it by Unitary Method.
105 sit ups = 3 minutes
1 sit up = 
<u>So, 35 sit ups per minute is the answer.</u>
Now, he will be able to do 35×5 = <u>175 sit ups in 5 minutes.</u>
Hope it helps :)
Use your pemdas! so you do the parentheses first
then move on to the exponent.
then multiply.
the answer would be whatever 9 times (37/3) is