At 7pm last night, the temperature was 10. at 7am the temperature was -7 . by how
much did the temperature change from 7 p. m. to 7 a. m.

Can someone answer this question? : )

In 2009, there were 1570 bears in a wildlife refuge. in 2010, the population had increased to approximately 1884 bears. if this trend continues and the bear population is increasing exponentially, how many bears will there be in 2018?

Handsome jack is buying a pony made of diamonds. the price of the pony is p dollars, and jack also has to pay a 25% diamond pony tax. which of the following expressions could represent how much jack pays in total for the pony?