Jamal's score is 80
<u>Explanation:</u>
Given:
Number of questions = 100
Let w be the number of wrong answers
Let r be the number of right answers
According to question,
r = 4w
r + w = 100
Solving both the equations we get:
4w + w = 100
5w = 100
w = 20
If w = 20 then r = 4 X 20 = 80
Therefore, Jamal's score is 80
With exponents of 10, the exponent really just tells you how many zeroes there are behind the 1. So, for example, 10^4=10000 (4 zeroes behind 1). When multiplying decimals by exponents of 10, you move the decimal to the right, and the amount of places is the exponent number. For example, if I multiply 5.34 by 10^2, I move the decimal over to the right 2 times and get 534.
So, if you just multiply these you get 9.36*10000, which is 93600.
Answer: 180 degrees
Step-by-step explanation:
A rotation of 180 degrees about the origin maps 
.
Answer:
8a+96
Step-by-step explanation:
8(12+a)
= 96+8a
Answer:
The answer is 2,484.
Step-by-step explanation:
First you would have to multiply 42 times 36 then subtract 1,512 from 3,996 you will get 2,484
