A*5+b*2=145
a +b =50 | * -2
5a +2b=145
-2a -2b = -100
----------------------
5a-2a = 145-100
3a= 45
a=45:3
a=15 questions are worth 5 p
b=50-15=35 questions worth 2 p
Since the 4 is underlined in 6.5<u>4</u> it means it is in the hundredths place so the value would be 0.04.
Answer:
7 times x
Step-by-step explanation:
When the expression is seen, we can say that it displays 7 times x.
I think your answer would be D
