ANSWER
a. d+4
b. 4d+16
EXPLANATION
The area of the square coaster is represented by:

We split the middle term to obtain,

We factor by grouping to get,


Since area of a square is l² , it means the side length of the square is

b) The perimeter of a square is given by

We substitute the length in terms of d, to obtain;

Or

Answer:
a 7/20. B 13/20
Step-by-step explanation:
800 X 35% = 280
280/800=7/20
180=76+4x
180-76=4x
104=4x
104/4=x
26=x
Measurement A= 26
150 games won: 110 games lost
Ratios
150:110
150/110
150 to 110
Answer:
6. 15.2
Step-by-step explanation:
60.8 divided by 4 so the constant is 15.2 because 15.2 x 4 is 60.80