Simplify the following expression algebra fraction

Hannah is 3 years older than twice her brother joey’s age. joey is 2 years old. how old is hannah? show all of your work! the number of students is five more than seven times the number of teachers. there are 10 teachers. how many students are there? be sure to show all of your work!

Find the average rate of change for f(x) = x2 − 3x − 10 from x = −5 to x = 10.

What are the solutions of the system? solve by graphing. y = x^2 + 3x + 2 y = 2x + 2