HELLO I REALLY NEED HELP WITH THIS QUESTION:

Felix calculated the area of a triangle with a base of 3 inches and a height of 1.5 inches. Edith calculated the area of a trapezoid with a height of 2 inches and parallel bases of 4 inches and 6 inches. Their work is shown below.

Felix's work:
A = 1/2bh
A = 3(1.5)
A = 45 inches2

Edith's work:
A = 1/2(b1 + b2)h
A = (4 + 6)2
A = 20 inches2
What error did they both make in their work?

They didn’t multiply by the base.

They didn’t multiply by the height.

They didn’t multiply by one half.

They didn’t use the right formula.

How to do this , and can some one explain

Michelle and julie work at a catering company. they need to bake 264 cookies for a birthday party that starts in a little over an hour and a half. each tube of cookie dough claims to make 36 cookies, but michelle eats about 1/5 of every tube and julie makes cookies that are 1.5 times as large as the recommended cookie size. it takes about 8 minutes to bake a container of cookies, but since julie's cookies are larger, they take 12 minutes to bake. a. how many tubes should each girl plan to bake? how long does each girl use the oven? b. explain your solution process what did you make? c. what assumptions did you make?

Three people are traveling and need to exchange the currency of their native country for the currency of the country they are visiting. drag each exchange to the category that shows the ratio of currencies in that exchange.