The value of the 4th term is 80. the sequence is being doubled at each step. find the value of the 5th term

What is the length of the midsegment of a trapezoid with bases of length 15 and 25 ?

Miguel has 334 baseball cards and 278 football cards. he says, i have 612 cards in all. is that reasonable? explain using the words round and estimate.

Systems of linear equation problem. with the wind a cyclist rode 24 miles in three hours. she returned in twelve hours against the wind. find the rate of the cyclist without wind and the rate of the wind.