Aspinner has three sections. the table shows the results of spinning the arrow on the spinner 80 times.

what is the experimental probability of the arrow stopping over section 2?

136

118

920

911

Astandard deck of cards contains 52 cards. one card is selected from the deck. (a) compute the probability of randomly selecting a seven or king. (b) compute the probability of randomly selecting a seven or king or jack. (c) compute the probability of randomly selecting a queen or spade.

Evaluate the expression for the given value of the variable. | ? 4 b ? 8 | + ? ? ? 1 ? b 2 ? ? + 2 b 3 -4b-8+-1-b2+2b3 ; b = ? 2 b=-2

Two years ago a man was six times as old as his daughter. in 18 years he will be twice as old as his daughter. determine their present ages.