When a bakery opened this morning the ratio of pineapple muffins to the number of mango muffins was 3: 2. after 144 pineapple muffins were sold, the ratio of the number of pineapple muffins to the number of mango muffins changed to 3: 5. how many pineapple muffins were there when the bakery opened in the morning?
answer is 240, but we need ot know how to get to the answer.

Which of the following can be used to explain a statement in a geometric proof?

He ! a group of farmers planned to clean 80 acres of wheat per day to finish the work on schedule. right before the work started, they received a new piece of machinery that them clean 10 more acres per day than originally planned. as a result of increased productivity in the last day before the deadline they only had to clean 30 acres. how many acres of wheat did the group of farmers have to clean?

What is the value of the product (3-2i)(3+2i)?