What is grater -1.5 or -3/2

If a and b are the measures of two first quadrant angles and sin a = 4/9 and sin b = 2/5 find sin(a+b).

Its due ! write an equation in which the quadratic expression 2x^2-2x 12 equals 0. show the expression in factored form and explain what your solutions mean for the equation. show your work.

The vet charges $45 for an office visit and $10 for each vaccination your dog needs. write an eaquation