The members of the science club shared how many times they had been to the zoo last year. The results are shown here. How many members went to the zoo at least 1 time?

Which of the binomials below is a factor of this trinominal? x^2-13+30

What is the total surface area of this square pyramid?

I'm at a bookstore with $\$35$ in my pocket and a $20\%$-off coupon. what is the cost of the most expensive book i can buy with my money and the coupon? (assume that there are books of every possible price in the bookstore. it's a large bookstore! )