A group of nine friends po to a baseball game. Each friend buys either a hamburger or hot dag at the game

The group buy 6 hot dogs and 3 hamburgers for a total of $27.75.

• A hamburger costs $1.75 more than a hot dog.

What is the cost of a hamburger?

$4.25

Step-by-step explanation:

Let the cost of the hotdog be x

Since a hamburger costs $1.75 more than a hot dog. Then, the cost of the hamburger will be:

= x + 1.75

We are further told that the group buy 6 hot dogs and 3 hamburgers for a total of $27.75. This can then be represented in an equation as:

6 hot dogs + 3 hamburger = $27.75

(6 × x) + 3 × (x + 1.75) = 27.75

6x + 3x + 5.25 = 27.75

9x = 27.75 - 5.25

9x = 22.50

x = 22.50/9

x = 2.50

The hotdog cost $2.50

Cost of hamburger = x + 1.75

= $2.50 + $1.75

= $4.25

Cost of 7 gallons=$24.50

Cost of 1 gallon=24.50/7=3.5

Cost of 15 gallons=15*3.5=52.5

Cost of 15 gallons will be $52.5

For 1 flavor there are 9 topping

Therefore, for 5 different flavors there will be 5*9 choices

No of choices= 5*9

=45 

The answer is in the image 

For every 8 cars there are 7 trucks

Therefore,

Cars:Truck=8:7

Answer is B)8:7

y=2x+15

where y=Value of coin

x=Age in years

Value of coin after 19 years=2*19+15

=$53

Therefore, Value after 19 years=$53

Salesperson will make 6% of 1800

=(6/100)*1800

=108

Salesperson will make $108 in $1800 sales

The answer is in the image 

The solution is given in the image below

The wood before starting =12 feet

Left wood=6 feet

Wood used till now=12-6=6 feet

Picture frame built till now= 6/(3/4)

=8 pieces

Therefore, till now 8 pieces have been made.