These tables represent an exponential function. Find the average rate of change for the interval from x = 9 to x = 10.
х
y
Interval
0
1
3
9
2
3
4
Average rate
of change
2
1]x3
6
1x3
18
1] x3
54
]x3
162
3x3
486
0 to 1
1 to 2
2 to 3
3 to 4
4 to 5
5 to 6
27
81
243
729

The swimming pool is open when the high temperature is higher than 20∘c. lainey tried to swim on monday and thursday (which was 3 days later). the pool was open on monday, but it was closed on thursday. the high temperature was 30∘c on monday, but decreased at a constant rate in the next 3 days. write an inequality to determine the rate of temperature decrease in degrees celsius per day, d, from monday to thursday.

Sam is a waiter at a local restaurant where he earns wages of $5 per hour sam figures that he also eams about $3 in tips for each person he serves sam works 6 hours on a particular day. if n represents the number of people sam serves that day, which of the following functions could sam use to figure ehis total earings for the do o a. en) = 30 o b. en) = 5n+ 18

Find two numbers if their sum is 91 and the ratio is 6: 7?