Abook store is hosting a special night in which families can enjoy a story and craft time. tickets to the event must be bought ahead of time and are $1.50 for children and $2.50 for adults. so far, 45 children's tickets have been sold, which is 60% of the total tickets sold. how many tickets have been sold so far? show or explain how you got your answer.

In triangle △abc, ∠abc=90°, bh is an altitude. find the missing lengths. ah=4 and hc=1, find bh.

The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 a. at what time does the particle reverse direction? b. when is the displacement positive? (round one decimal place and answer in interval notation) c. when is the displacement negative? (round one decimal place and answer in interval notation) d. when is the particle’s acceleration positive? (round one decimal place and answer in interval notation) e. when is the particle’s acceleration negative? (round one decimal place and answer in interval notation)

Why is studying fractions important