Hudson and his children went into a bakery where they sell cupcakes for $4.75 each and brownies for $2 each. Hudson has $30 to spend and must buy at least 7 cupcakes and brownies altogether. If xx represents the number of cupcakes purchased and yy represents the number of brownies purchased, write and solve a system of inequalities graphically and determine one possible solution.

Iam trying to solve a linear equation for the shoe size of someone 84" tall taking into consideration example 1 is 69" tall with a shoe size of 9 and example 2 is 72 inches tall with a shoe size of 11. i understand that the equation should be y=mx+b and that on the graph the answer is (3,2) but i just don't understand how to create the equation to solve for 84-inches and 60-inches tall questions. after two days, i need .

What is (28 + 7 + 6 + 3) x 1/2 show your work

For what values of x is x2 + 2x = 24 true?