Mark studies a group of 30 whales. if each whale weighed approximately 3.8 x 105  pounds, find the total weight of all 30 whales. express your answer in scientific notation.

Which of the following is the explicit rule for a geometric sequence defined a recursive formula of a -5a for which the first term is 23?

The box plots show the average speeds, in miles per hour, for the race cars in two different races. which correctly describes the consistency of the speeds of the cars in the two races?

Graph the line y=4/3 x+1 . use the line tool and select two points on the line.