7.4x10^-8-6.7x10^-9 please help me I don’t know the answer

What is the area of the shaded sector?

What is the mean of the data set 125, 141, 213, 155, 281

Select the correct answer from each drop-down menu. let c(g) be the total cost, including shoe rental, for bowling g games at pin town lanes. c(g) = 5g+3 so, c(6) = 8? 33? 30? or 14? this means that for a $6 shoe rental? for $6 per game? for 6 games? for a total cost of $6? , the games are $8 each? total cost is $33? number of games is 14? or total cost is $30? reset next