What is the value of n in this equation? Enter your answer in the box. (2.4 x 10^3)* (3 x 10^n)= 7.2 x 10^9

Iam so stuck. what is the worked out answer for this question?

In the rectangle below ac=30 units what is de

Someone this asap for a group of students attends a basketball game. * the group buys x hot dogs at the concession stand for $2 each. * the group buys y drinks at the concession stand for $3 each. the group buys 29 items at the concession stand for a total of $70. how many hot dogs did the group buy?