The following are the last 10 run scores Colin got in cricket:
21, 30, 10, 4, 19, 31, 5, 7, 17, 4
a) Work out Colin's mean score.
b) Colin plays cricket again on Sunday. He gets 17 runs.
What is his new mean score?
Give your answers as decimals.

Twice the sum of a number and 4 is equal to three times the difference of the number and 7. find the number.

Sam is a waiter at a local restaurant where he earns wages of $5 per hour sam figures that he also eams about $3 in tips for each person he serves sam works 6 hours on a particular day. if n represents the number of people sam serves that day, which of the following functions could sam use to figure ehis total earings for the do o a. en) = 30 o b. en) = 5n+ 18

My hour hand points between the 8 and the 9 in 35 minutes it will be the next hour. what time is it ?