The results of randomly drawing a card from a standard deck of 52-playing cards are as follows: 12 hearts, 21 clubs, 14 spades, and 11 diamonds. What is the experimental probability of drawing a heart?

Aremote-controlled boat can travel at 4 feet per second in calm water. the boat traveled 48 feet with the current, and then it traveled 16 feet against the current in the same amount of time. how fast is the current?

Heather is a cashier. she can ring up 1212 customers in 99 minutes. at this rate, how many minutes does it take her to ring up 44 customers?

Is an altitude in triangle abc. which statements are true? check all that apply. δabc δbxc δaxc ~ δcxb δbcx δacx δacb ~ δaxc δcxa δcba