Answer:
45
Step-by-step explanation:
a = 78/20=45
Let the width be x
Length= x+7
Area=lw
99=(x+7)(x)
99=x²+7x
0=x²+7x-99
x= -14.04 or x=7.04
Since a length cannot be negative, the width is 7.04 ft and the length (7.04+7)=14.07 ft
Hope I helped :)
Answer:

Step-by-step explanation:
The like terms are the ones containing the variable 'c'. They are combined by adding their coefficients.
Working just with the coefficients of c, we have ...

Then the simplified expression is ...
(2 3/4)c +(3 1/8)c +7
= (5 7/8)c +7
Answer: Hello, there! Your Answer is Below^^
7.O2 Would be The Correct Answer.
Step-by-step explanation:
So I Subtracted 20 - 12.98 And Got the Answer $ 7.02
To Add Or subtract Decimals Here's what you can do to find your Answer
Line up the numbers vertically so that the decimal points all lie on a vertical line.
Add extra zeros to the right of the number so that each number has the same number of digits to the right of the decimal place. Step 3: Subtract the numbers as you would whole numbers.
<em>Hope this Helps!!</em>
<em> Have a great day!!!</em>
Answer:
225 stickers
Step-by-step explanation:
(900+450)/2 = 1,350/2= 675
so, Carla shared with Justin :
900-675 = 225 stickers