If Samuel can type 40 words per minute, he can type
words in
minutes. So, the amount of minutes you're interested in is the solution of the equation
minutes.
Since 8750/60 is 145 with reminder 50, Samuel can type the required amount of words in 145 hours and 50 minutes.
UW; Converse of the Isosceles Triangle Theorem
This is the answer because angles T and W are congruent. Meaning that they make an isosceles triangle. The two sides connecting to those angles should be congruent. Therefore UT and UW are congruent.