Which expressions are equivalent to the expression 20 ÷ (4 – 2)? choose exactly two answers that are correct.
a. 8 12 ÷ 2
b. 14 – 8 ÷ 2
c. 2 • (7 – 4)
d. 16 – 14 ÷ 2 1

You drop a rubber ball off the roof of a 50 meter high building onto a paved parking lot. it bounces back up with every bounce, but not quite all the way back up to you. after the first bounce it bounces back only 80 percent of the distance it was dropped from. the pattern continues, meaning after every bounce it comes up to just 80 percent of the previous maximum height. so if before the first bounce the height is 50 meters, what height does the ball reach after the fifth bounce? round your answer to one decimal place and chose the correct response from the choices below:

The graph of h(x)= |x-10| +6 is shown. on which interval is this graph increasing

How many real-number solutions does the equation have? -4x^2 + 10x + 6 = 0 a. no solutions b. two solutions c. infinitely many solutions d. one solution