Answer:
The answer is either a or c .
Step-by-step explanation:
Answer:
Equation for cost of the hall restoration fee 70.4 + 52.8 + 11f = 128 .15 and the cost of the hall restoration fee is $0.45 .
Step-by-step explanation:
Let us assume that the hall restoration fee be f .
As given
The ticket price for a concert at a historic music hall includes.
$6.40 for the concert $4.80 for the program and a hall restoration fee the price for 11 tickets is$128.15 .
Than the equation becomes
(Cost for concert + Cost for program + Hall restoration fee) × Number of tickets = Total amount of 11 tickets
Putting all the values in the above
(6.40 + 4.80 + f) × 11 = 128.15
Open the bracket
6.40 × 11 + 4.80 × 11 + 11f = 128.15
70.4 + 52.8 + 11f = 128 .15
11f = 128 .15 - 123.2
11f = 4.95

f = $ 0.45
Therefore the equation for cost of the hall restoration fee 70.4 + 52.8 + 11f = 128 .15 and the cost of the hall restoration fee is $0.45 .
Answer:
D
Step-by-step explanation:
If
then we can consider right triangle with adjacent leg 4 un. and opposite leg 3 un.. By the Pythagorean theorem,

So,

-3x+5y=10 (add 3x on both side)
5y=3x+10 ( divide 5 to each term)
y=3/5x+2
slope is 3/5
y-intercept is 2