Find the surface area please.

Surface Area = 86 cm^2

Step-by-step explanation:

Given:

Triangle,

b = 8 cm

h = 9 cm

Rectangle,

l = 10 cm

w = 5 cm

To Find:

Surface Area = ?

Solution:

Surface Area = b x h /2 + l x w

Surface Area = 8 x 9 / 2 + 10 x 5

Surface Area = 4 x 9 + 50

Surface Area = 36 + 50

Therefore, Surface Area = 86 cm^2

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yes because there is exactly one y value for every x value

for function there can't be more than one value for every x value

option c) graph of line going through 1, 4 and 3, 10

step-by-step explanation:

let y equal to margo's coin collection

let x equal to number of years

at the begining x=0, y=1 → point=(x,y)→point=(0,1)

she adds 3 coins per year, then y=1+3x

at x=1, y=1+3(1)=1+3→y=4→point=(x,y)→point=(1,4)

at x=3, y=1+3(3)=1+9→y=10→point=(x,y)→point=(3,10)

the graph of line going through (1, 4) and (3, 10), then the option c is the correct.