If there is a 2% tax on a 8 dollar t-shirt, what will be your total cost?

Solve the inequality. write the inequality in interval notation. 9(t-2)> 3(t-7)

Evaluate the expression for the given value of the variable. 5×(h+3) for h=7

Me solve this problem, and someone clearly explain to me how to solve it.1.) use the value of the discriminant to determine if the given trinomials has 2 real solutions, 1 real solution, or no real solutions.a.  x2  − 4x  − 7 = 0b. 4r2  + 11r  − 3 = 0c. 3m2  + 7 = 0d.  t2  + 2t  + 1 = 0