Answer:
The sale price is 79 dollars :P
Step-by-step explanation:
uhhh just subract 100 - 21 and yea you should get 79. :)
Step-by-step explanation:


Answer:
7.30
Step-by-step explanation:
T = 2π √(L/32)
3 = 2π √(L/32)
3/(2π) = √(L/32)
(3/(2π))² = L/32
L = 32 (3/(2π))²
L ≈ 7.30
ANSWER

EXPLANATION
We were given

.
To convert to vertex form, We factor out the leading coefficient which is 8.

Next, we form a perfect square by adding and subtracting

to get;

We factor and combine the first two terms with a common factor of 8 to get,

This simplifies to