The concentration of platinum in a necklace is 7%. The necklace weighs 18 g. Find the amount of platinum in the necklace.

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?

1. a parachutist is 800 feet above the ground when she opens her parachute. she then falls at a constant rate of 5 feet per second. select the equation that represents this situation. h = -800t + 5 y = -5x + 800 h = 5t - 800 y = 800x + 5 i need

Me. i can't figure out this question. give an explanation too. .