Area of triangle 4cm, 5cm and 3cm

4cm x 5cm x 3cm = 60cm

Step-by-step explanation:

You have to multiply each number by the next, then you have the area, to find the PERIMETER, you multiply each number by the amount of sides it is on and add

i think it would be 42cm

b. y = 4x - 2

step-by-step explanation:

to find a parallel equation to an equation, make sure both equations have the same slope but different y-intercepts.

y = 4x + 1

4 = slope

1 = y-intercept

y = 4x - 2

4 = slope

-2 = y-intercept

they both have the same slope but different y-intercepts, so, b. is the correct answer.

and to check your work, you can graph both equations. : )