Christa purchased ten bottles of shampoo in each of three different sizes: 3
1
2
ounces;
6
1
2
ounces; and
8
1
2
ounces. She used the expression
(
10
×
3
1
2
)
+
(
10
×
6
1
2
)
+
(
10
×
8
1
2
)
to show the total amount of shampoo purchased in ounces. Which expression is equivalent to the one Christa used?

10
×
3
1
2
+
6
1
2
+
8
1
2

10 × 3 1 2 + 6 1 2 + 8 1 2

10
+
3
1
2
×
6
1
2
×
8
1
2

10 + 3 1 2 × 6 1 2 × 8 1 2

10
(
3
1
2
+
6
1
2
+
8
1
2
)

10 ( 3 1 2 + 6 1 2 + 8 1 2 )

30
(
3
1
2
+
6
1
2
+
8
1
2
)

20

step-by-step explanation:

the equation cos(35) =a/25 can be used to find the length of bc what is the length of bc? round to the nearest tenth

step-by-step explanation:

49%

step-by-step explanation:

when you realize that you dont know just realize i just took a test and im so smart

the final amount you will pay is $68.04.

the tip is determined by the pre-tax amount, so we calculate the tip based on the original bill, not after we've added sales tax.

to find the tip:

we can divide 54.00 by 100 to get 1% of 54. then we multiply that by 18.

54 / 100 = .54

.54 x 18 = 9.72

tip = 9.72$

to find the tax:

we can divide 54.00 by 100 to get 1% of 54. then we can multiply that by 8 to get 8%.

54 / 100 = .54

.54 x 8 = 4.32

tax= 4.32

now we can add the tip and tax to the bill to get our total.

54 + 9.72 + 4.32 = 68.04

total: $68.04

step-by-step explanation: