7 15. (Arlen is a window washer. This week,
he planned to spend 3.5 hours washing
windows for each business that contacted
him. He finished washing windows at
one business 0.5 hour earlier than he had
planned. In all, he spent 24 hours washing
windows this week. For how many
businesses, b, did he wash windows?

How do i do this? i don’t understand

At the beginning of the day, stock xyz opened at $6.12. at the end of the day, it closed at $6.88. what is the rate of change of stock xyz? a. 1.17% b. 11.0% c. 12.4% d. 81.5%

1. which of the following algebraic equations is equivalent to ? x^n = a a^n = x a^x = n x^a = n 2. 16^1/4= 1/2 2 4 3. (-36)^1/2= -6 1/6 no real number 4. 8^2/3= 4 8 16√2 )^5/2= 7,776 1/7,776 no real number 6. m ^ the square root of a^2m simplified is: 7. the square root of 3^3 times the square root of 2 simplified and in radical form is: