Solve. 3
b=-a
a + b = 21
a = 37
a =
a = 20
a = 12
b = 9
a = 20
b = 11
b = 15
1
b = -16

The chs baseball team was on the field and the batter popped the ball up. the equation b(t)=80t-16•16+3.5 represents the height of the ball above the ground in feet as a function of time in seconds. how long will the catcher have to get in position to catch the ball before it hits the ground? round to the nearest second

At $1.32 million, they closed last month percent above what they paid in 2007." how much did they pay in 2007?

Aquadrilateral has exactly one pair of parallel sides. which name best describes the figure?