HELP PLEASE WILL CROWN BRAINLIEST!! The temperature in Calgary at 9 a. m. was – 23 C.
By 11 a. m., it had warmed up by 8 C.
By noon, it had warmed up by another 3 C.
But by 2:00 p. m. it had cooled by 6 C.
What was the temperature in Calgary at 2:00 p. m.?

An appliance store sells a washer-dryer combination for $1800. if the washer costs $300 more than the dryer, find the cost for each appliance.

Thales was an ancient philosopher familiar with similar triangles. one story about him says that he found the height of a pyramid by measuring its shadow and his own shadow at the same time. if the person is 5-ft tall, what is the height of the pyramid in the drawing?

After t seconds, a ball tossed in the air from the ground level reaches a height of h feet given by the equation h = 144t-16t^2. after how many seconds will the ball hit the ground before rebounding?