If the cost of those white tiles are $ 3.50 what is the unit cost per white

Aplot of land has been surveyed for a new housing development with borders ab, bc, dc, and da. the plot of land is a right trapezoid with a height of 60 feet and an opposite leg length of 65 feet

Asingle die is rolled twice. find the probability of rolling a 3 the first time and a 2 the second time

If jobs arrive every 15 seconds on average, what is the probability of waiting more than 30 seconds?