Train a arrives at central station on the hour and every 12 minutes. train b arrives on the hour and every 15 minutes. when do both trains arrive at the same time?
a) on the hour and 30 minutes past the hour
b) on the hour and 15 minutes to the hour
c) on the hour and 27 minutes past the hour
d) on the hour
explain why you chose the answer and how you achieved it.

Martin likes to make flower bouquets that have 3 daffodils and 4 tulips per vase. a daffodil has a mass of d grams, a tulip has a mass of t grams, and the vase has a mass of u grams. the expression 5(3d + 4t + v) describes the mass of 5 bouquets. match each amount in the situation with the expression that represents it. situation expression number of bouquets mass of one bouquet mass of the tulips in one bouquet 4t mass of the daffodils in one bouquet 3d + 4t + v

Which of these triangle pairs can be mapped to each other using two reflections?

If f(x) = x+8 and g(x) = 4x- 3, find (f+g)(x)