If the base lengths of a trapezoid are 11 cm and 17 cm, then what is the length of the trapezoid's midsegment?

Nine more than four times a number is the same as one less than twice the number. find the number?

The ivring berlin learning center would like a possible net profit of $650,000 on its new resource manual it sells to schools. the fixed costs for producing the manual are $780,000 and the variable cost per package is $19.85. if the estimated unit sales are 1,250,000 units, what selling price unit should the ivring berlin learning center try?

Charlie tosses five coins.what is the probability that all five coins will land tails up.