Triangle PQR is an isosceles triangle with the coordinates P(2,3). Q(5,10), and R(8,3). What is the area of triangle PQR?
O A. 15 units2
B. 21 units2
O C. 30 units2
O D. 42 units2
O E. 65 units2

50 ! pls ! 12.  building codes regulate the steepness of stairs. homes must have steps that are at least 13 inches wide for each 8 inches that they rise.

a. discuss how to find the slope of the stairs.
b. describe how changing the width or height affects the steepness of the stairs.

Explain how you do each step what term makes it inconsistent y=2x - 4 ?

The swimming pool is open when the high temperature is higher than 20∘c. lainey tried to swim on monday and thursday (which was 33 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 33 days. write an inequality to determine the rate of temperature decrease in degrees celsius per day, d, from monday to thursday.