4 is 18 because 6x3 is 18
Answer:
Amy worked for 128 hours while Brayden worked for 112 hours
Step-by-step explanation:
Given
Let A represents Amy and B represents Brayden
A = 16 + B ------(1)
A:B = 8:7------- (2)
Required
Find A and B;
Convert (2) to fractions

Cross Multiply


Substitute A = 16 + B in the above expression

Open Bracket


Subtract 7B from both sides



Recall that A = 16 + B
Hence, 

<em>This implies that Amy worked for 128 hours while Brayden worked for 112 hours</em>
20 will be the answer when x=4
Answer:
increase
Step-by-step explanation:
percentage increase = new value (5) - original value (4) /original value (4) x 100
5-4 = 1
1/4 = .25
.25 x 100 - 25%
percentage decrease = original value -new l value / original value x 100
I think the answer is 98 squared