Four people want to cross the river. there is only one boat available, and it can carry a maximum of 200 pounds. the weight of the four people are 109,170,110, and 90 pounds. how can they all manage to get across the river, and what is the minimum number of crossing required for the boat?

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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?

Factor the expression using gcf 9b+45