How many degrees warmer is Knowlton than Gainesville

Knowlton-12c
Gainesville-9c cooler

Which statement is always true? a. square bcdf is a rectangle. b. rectangle gjkm is a square. c. quadrilateral stpr is a trapezoid. d. parallelogram abcd is a rhombus.

The parabola x = y² - 9 opens: a.)up b.)down c.) right d.)left

Two times a number plus three times another number equals 4. three times the first number plus four times the other number is 7. find the numbers