What is the value of the expression (18-3)•2 ²+15?

While picking thirty apples, mia noticed that six apples had worm holes and had to be thrown away. what is the ratio of good apples picked to bad apples picked?

The length of a shadow of the building is 36m. the length of the pole, which is perpendicular to the ground, is 1.9m. the length of the pole's shadow is 1.52m. what is the height of the building?

Jane’s favorite fruit punch consists of pear, pineapple, and plum juices in the ratio 5: 2: 3. how many cups of pear juice should she use to make 20 cups of punch?