After 12 months, holly lost 156 pounds. How much did holly lose in 1 month

13

Step-by-step explanation:

156 divided by 12 equals 13

Holly would have lost 13 pounds per month.

Step-by-step explanation:

If she lost 156 pounds in 12 months, to find out how much she lost in one month, you have to divide 156 by 12. That way you can get how much she loses per month. That equals 13.

18 units²

step-by-step explanation:

first let's find altitude bd using the distance formula

d = √((y₂ - y₁)² + (x₂ - x₁)²)

bd = √((0 - -3)² + (0 - 3)²)

bd = √18

given the placement of points a and c, we can denote that point d bisects segment ac.

we will call ac the base.

using the distance formula

ac = √((0 - 6)² + (-6 - 0)²)

ac = √72

knowing our base and our height, we can plug these into our triangle area formula

area = (b * h)/2

area = (√18 * √72) / 2

area = (√1296) / 2

area = 36 / 2

area = 18 units²