Every year, around 25,000,000 kilograms (kg) of hair is cut in the United States. Each kilogram of hair contains about 0.0002 kg of zinc, and each kilogram of zinc is worth about 4 dollars. How many dollars worth of zinc is contained in hair cut in the US?

Write two subtraction equations that are equivalent to 5 + 12 = 17.

In triangle opq right angled at p op=7cm, oq-pq=1 determine the values of sinq and cosq

Barney & noblet customers can choose to purchase a membership for $25 per year members receive 10% off all store purchases 1. how much would a member pay per year if he bought $50 worth of items each year? 2. write a slope-intercept equation that expresses how much a member pays per year using x to represent his purchases per year 3. how much would a member have to spend per year to pay off his membership fee?