Assume you have collected data pairs (x, y) on a certain variety of tree. xis
the number of weeks since the tree was planted and yis the height of the tree
in inches. A plot of the data points with the best-fit line is given below. What
is the numerical value of the height as predicted by the best-fit line for an age
of 40 weeks?
th
Height
20
40
60
80
100 120
Age

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.