Use cross products to identify the equation needed to solve this proportion 52.
X g
0 5x = 18
2x = 45
9x = 10
2x = 14

Which of the following are parts of a sphere

Aquantity with an initial value of 3900 decays exponentially at a rate of 35% every hour. what is the value of the quantity after 0.5 days, to the nearest hundredth?

15m is what percent of 60m; 3m; 30m; 1.5 km? the last one is km not m