What is the area of the triangle? 45 in.

do you have a picture that you can post? Because what you wrote doesn't give that much information

Step-by-step explanation:

To find the area of a triangle its bxh/2

but if you a specific question post a pic

To find the area of the triangle, multiply the height by the base and divide that by 2

it costs $20 to interview each person for a survey. find the cost to obtain a +- 3% margin of error.

step-by-step explanation:

copy and paste, put it in google

f(x) = x^3 -2x^2 -3x

x( x^2 -2x-3)

x( x^2 +x -3x -3)

x( x(x+1) -3(x+1))

x( x-3)( x+1)

so zeroes are 0, 3,-1

its (2) option