Movie tickets are $4 for regular admission and $3 for seniors. On a night where there were 190 people and total sales of $720, how many senior tickets were sold?

Which of the below points is in the solution region to the following system of inequalities?
x + 3y ≥ -4
3x - 2y < 5

Simplify the following expression by using the power rule for exponents.
(x⁵)¹⁰ = __________

Factor the trinomial completely after removing the GCF. Show your work and explain the steps you used to solve.
3b² + 18b - 21