Answer: -1t + 720
Step-by-step explanation:
He worked at both jobs for 90 hours for this month.
He worked t hours as a tutor which means that as a waiter he worked;
= 90 - t hours
The amount earned is therefore;
= 7t + (8 * (90 - t))
= 7t + 720 - 8t
= -1t + 720
Answer: I'm not entirely sure, but maybe 1/x^2?
1 is not a function. 2 is not. 3 is not. 4 and 5 are functions. 6 is not.
Answer:
negative
Step-by-step explanation:
right-to-left is positive
left-to-right is negative
Answer: 13.5 hours or 14 hours (if you round it)
Step-by-step explanation:
* 15
=13.5