Answer: A. 65%
Step-by-step explanation:
First you would divide 13 by 20. That would give you 0.65. Then you would take the decimal and move it over 2 places to the right. Then slap a percent sign on it and you gucci.
The answer for question 4:
a) 3(3n-1)=9n-3
b) 9n-3=96
9n=96+3
9n=99
n=11
Answer:
58.75 or 58 
Step-by-step explanation:
length × width = area
(11
) × (5) = 58.75 or 58
10 different pairs. Since there are 5 different brands you simply add 4+3+2+1 to get 10.
22 can go into 30 only once with a remainder of 7