What is the solution set for the open sentence with the given replacement set? 4y + 2 = 18, {4, 5, 6, 7}
a. 4
b. 5
c. 6
d. 7

In the polynomial below, what number should replace the question mark to produce a difference of squares? x2 + ? x - 36

Liz had 140 pens and inna had 100 pens. after inna gave liz some pens, liz had 3 times as many pens as inna. how many pens did inna give liz?

The map shows the location of the airport and a warehouse in a city. though not displayed on the map, there is also a factory 112 miles due north of the warehouse. a truck traveled from the warehouse to the airport and then to the factory. what is the total number of miles the truck traveled?