The ratio of boys to girls is 3: 4. if there are 42 total students how many are girls?

Atrain leaves little? rock, arkansas, and travels north at 90 kilometers per hour. another train leaves at the same time and travels south at 80 kilometers per hour. how long will it take before they are 680 kilometers? apart?

Calculate the effective quarterly compound interest rate equivalent to a 1% of monthly compound interest rate.

B. two events are dependent if the occurrence of one event changes to occurrence of the second event. true or false