Donna's deli delivers lunches for $7 per person plus a $35 delivery fee. larry's lunches delivers lunches for $11 per person.
a. write an expression to represent the cost of x lunches from donna's deli. write an expression to represent the cost of ordering x lunches from larry's lunches.
b. write an inequality to determine the number of lunches for which the cost of larry's lunches is less than the cost of donna's deli.
c. solve the inequality and explain what the answer means. which restaurant charges less for an order of 10 lunches?
plz !

Aprisoner is trapped in a cell containing three doors. the first door leads to a tunnel that returns him to his cell after two days of travel. the second leads to a tunnel that returns him to his cell after three days of travel. the third door leads immediately to freedom. (a) assuming that the prisoner will always select doors 1, 2 and 3 with probabili- ties 0.5,0.3,0.2 (respectively), what is the expected number of days until he reaches freedom? (b) assuming that the prisoner is always equally likely to choose among those doors that he has not used, what is the expected number of days until he reaches freedom? (in this version, if the prisoner initially tries door 1, for example, then when he returns to the cell, he will now select only from doors 2 and 3.) (c) for parts (a) and (b), find the variance of the number of days until the prisoner reaches freedom. hint for part (b): define ni to be the number of additional days the prisoner spends after initially choosing door i and returning to his cell.

Harry is at the depot in dover and has deliveries to make in edinburgh, glasgow and aberdeen. from dover which of the deliveries is the shortest distance?

For the right triangle shown, the lengths of two sides are given. find the third side. leave your answer in simplified, radical form.