Answer:
Other Side (B) = 9.45 inches
Step-by-step explanation:
Given:
Hypotenuse = 10 inches
Other Side (A) = 3.25 inches
Find:
Other Side (B) = ?
Computation:
According to Pythagoras theorem:

Other Side (B) = 9.45 inches
499+49.99x=y
499 is the initial cost of the computer
49.99x means you pay 49.99 per game
y is the total cost
Answer: 6
Step-by-step explanation:
Slope is found by doing:

(x1 and y1 must be from the same ordered pair and x and y must be from the same ordered pair, however point (x1,y1) and (x,y) can be used interchangeably)
Let us say that (x1,y1) is (3,18)
And (x,y) is (5,30)

Alright,
you will need to solve for each variable to find if they got the equation correctly or not..
Let's start with h
isolate h
(1/2)h = A/(b1+b2)
Now we need to get rid of 1/2 we may do so by multiplying both sides by 2
h = 2(A/(b1+b2))
And that's not how they did it for h so Option D doesn't apply
Let's see C
Also doesn't apply since they multiplied 2 only by A rather than A/h
Let's see B
Also not correct they made the same mistake as with option C
Let's see A
again same mistake
when multiplying both sides by 2
the 2 should be as following

I believe you should contact your instructor and explain that non of the options is right.