19. What is the angle of elevation, to the nearest tenth of a degree, to
the top of a 45-foot building from
85 feet away?

Solve the problem by making up an equation. a child is 12 years old, and his father is 32 years older. in how many years will the age of the father be 3 times the age of the child?

Question part points submissions used suppose that 100 lottery tickets are given out in sequence to the first 100 guests to arrive at a party. of these 100 tickets, only 12 are winning tickets. the generalized pigeonhole principle guarantees that there must be a streak of at least l losing tickets in a row. find l.

Tom had a total of $220 and he spent $35 on a basketball ticket . what percent of his money did he have left?