The 80 brownies sold at the bake sale were half the number of rice crispy treats sold. write an expression to represent.

2B = R or B = R/2

Step-by-step explanation:

We can write an expression where B is number of brownies and R is number of rice crispies. Since 80 is half the number of R then we can write R/2 as the number of brownies. B=R/2.

Since brownies are half the number of rice crispies, then twice as many brownies would need to sell to be the number of rice crispies. This is 2B = R.

proofs involving isosceles triangles often require special consideration because an isosceles triangle has several distinct properties that do not apply to normal triangles.(more about triangle types) therefore, when you are trying to prove that two triangles are congruent, and one or both triangles, are isosceles you have a few theorems that you can use to make your life easier.

step-by-step explanation:

an isosceles triangle has two congruent sides and two congruent angles. the congruent angles are called the base angles and the other angle is known as the vertex angle. ∠bac and ∠bca are the base angles of the triangle picture on the left. the vertex angle is ∠abc