The following are the last 10 run scores Colin got in cricket: 22, 35, 33, 18, 16, 12, 28, 18, 1, 16
a) Work out Colin's mean score.
b) Colin plays cricket again on Sunday. He gets 10 runs.
What is his new mean score?
Give your answers as decimals.

Answer this question! 30 points and brainliest! only if you know the answer.

Marco is studying a type of mold that grows at a fast rate. he created the function f(x) = 345(1.30)x to model the number of mold spores per week. what does the 1.30 represent? how many mold spores are there after 4 weeks? round your answer to the nearest whole number. 1.30 represents the number of mold spores marco had at the beginning of the study; 985 mold spores 1.30 represents the number of mold spores grown in a given week; 448 mold spores 1.30 represents the 30% rate of weekly growth; 345 mold spores 1.30 represents the 30% rate of weekly growth; 985 mold spores

Before simplifying, how many terms are there in the expression 2x - 5y + 3 + x?