A ferris wheel goes around once every 20 seconds . How many times will a rider be ag thetop during an 8-minuteride? A.23
B.24
C.25
D.160

In triangle abc, the length of side ab is 12 cm, the length of side bc is 5 cm, and the length of side ca is 9 cm. find the measure of angle a using the law of cosines.

Which is equivalent to 10/12? options: 10/18 5/6 3/12 9/11

Robin spent 25% more time on his research project than he had planned he’s been an extra h ours on the project which of the following expressions could represent the number of hours rob actually spent on the project