What is the surface area of the right triangular prism below?

Step-by-step explanation:

to work out surface area you need to figure out the area of each face on the shape.

the first side is 7.5 x 9 = 67.5

there are two of these sides

this makes 135mm

the top side is (4.5 x 6) / 2

this makes 13.5

there are also two of these sides making 27mm

finally the back side is 4.5 x 9 = 40.5

there are only one of these sides

this makes 40.5mm

finally you need to add all these sides

135 + 27 + 40.5 = 202.5

the surface area is 202.5mm

part a

x     y

0     8

1     7.5

2     7

3     6.5

4     6

5     5.5  

for every hour i deducted .5 inches from the length of the candle

part b

it is a function because for every x value there is only one y value

part   c

for every x value there is only one y value

x       y

0       8

1       7.6

2       7.2

3       6.8

step-by-step explanation:

answer is because 4×10=40

and 98×4= is 392

40,392