Your sister is 14 yrs old. your brother is 10 yrs less than twice your sisters age. your cousin is half ur brothers age. write and evaluate an expression to find your cousins age.

Ineed with number 17 i don’t get it at alll

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?

Asystem of equations has 1 solution.if 4x-y=5 is one of the equations , which could be the other equation ?