What number must be squared in order to complete the pattern. 49,64,81,100

This week, conrad will work 1 3/4 times longer than last week. giovanni will work 1 1/3 times longer than last week. sally will work 2/3 the number of hours she worked last week. match each employee's name to the number of hours he or she will work this week

When y’all answer can y’all explain too !

The surface area of the triangular prism is .