Answer:
$38.26
Step-by-step explanation:
add the amounts together and multiply by 0.075 and 0.15 add these answers to the original amount
Answer:
i think if she buys 5 books the she will have 90 stamps cuz 1 book cost 18 stamps then 5 books = <u>18x5=90</u>
Step-by-step explanation:
Answer:
Solution = (-8,-28)
Step-by-step explanation:
y = - 3
Since y varies directly as x then
y = kx ← ( k is the constant of variation )
to find k use y = - 1 when x = 3
k =
=
= - 
hence y = -
x
when x = 9, then
y = -
× 9 = - 3
Answer:
<em>The surface area of square prism = 384 units squared</em>
Step-by-step explanation:
<u><em>Explanation</em></u>:-
<em>Given the square prism side 'a' = 8 units</em>
<em>The surface area of square prism = 2 a² + 4 a h</em>
Given square prism length , width and height also equal identical sides
The surface area of square prism = 2 a² + 4 a h
= 2(8)² + 4 (8)(8)
= 2(64) + 4(64)
= 384 units squared
<u><em>Final answer</em></u>:-
<em>The surface area of square prism = 384 units squared</em>