Answer:
-1 out of -3-X2-4x
Step-by-step explanation:
Answer:

Step-by-step explanation:
we know that
The surface area of a square prism is given by the formula

where
b is the length side of the square base
h is the height of the prism
we have

substitute

solve for h

Answer:
Step-by-step explanation:
area = ½×base×height
21 = ½(x+1)x
42 = (x+1)x
x² + x - 42 = 0
(x+7)(x-6) = 0
x = -7, 6
-7 is an extraneous solution, so x = 6
Answer:
the suntan lotion is $6.50 a bottle
Step-by-step explanation:
we know the glasses are $12.99 and the overall tax was $1.81.
Add 12.99+1.81=14.80.
Now take the total amount spent which is $27.80 and subtract $14.80
27.80-14.80=13
divide 13 by 2
13/2= 6.50