Two students in mr d'alsesandro's class were asked to write an equivalent expression for the expression (a-6) (a-4). identify the student with the correct work and where the mistakes were in the other students work

gabrielles work

(a-6) (a-4)

= a. a = a(-4) - 6(a) - 6(-4)

= a ^2 - 4a - 6a - 24
= a^2 - 10a - 24

britneys work

(a-6) (a-4)
= a. a - 4a -6a -6(-4)
= a ^2 -10 a
+24

The krasnapolski is a top-of-the-line hotel in amsterdam, the netherlands. among their many services, they rent bicycles to guests. the bicycle checkout is open 24 hours per day 7 days per week and has 50 bicycles on hand. on average, 10 guests request a bicycle each day, arriving completely randomly at all times of the day during the spring and summer seasons. guests keep bicycles for four days on average, with a standard deviation of two days. how long does a guest on average have to wait for a bike? a. approximately 24 hours b. approximately 0.033 hours c. approximately 4 days d. approximately 47 minutes