For this exponential function, what is the output value (y),
when the input value (x) is 3?
y = 10.5x.
(3, [?])

Agraph of a trapezoid can have diagonals with slopes that are negative reciprocals and two pairs of adjacent sides that are congruent, true or false, and why

3x + 4y = 5 x- 3y = -7 solve by substitution

Aculture started with 4,000 bacteria. after 5 hours, it grew to 5,200 bacteria. predict how many bacteria will be present after 19 hours. round your answer to the nearest whole number.