Caitlin had $402 in her bank account. she withdrew $15 each week to pay for swimming lesson. she now has $237. write an equation that can be used to find the number of swimming lessons that she paid for? how many swimming lessons did she pay for? at the time she had $237, the cost of a lesson rose to $19. how many lessons can she pay for with her remaining $237?

Aregular hexagon rotates counterclockwise about its center. it turns through angles greater than 0° and less than or equal to 360°. at how many different angles will the hexagon map onto itself?

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Assume that adults have iq scores that are normally distributed with a mean of mu equals 100 and a standard deviation sigma equals 20. find the probability that a randomly selected adult has an iq between 80 and 120.assume that adults have iq scores that are normally distributed with a mean of mu equals 100 and a standard deviation sigma equals 20. find the probability that a randomly selected adult has an iq between 80 and 120.