When a (squared) + a-3 is subtracted from 3a (squared) -5, the result

a) 2a (squared) -a-2
b) 2a (squared) a+2
c) -2a (squared) +a+2
d) 4a (squared) +a+8
e) none of the above

this is 10th grad mathematics

Which graph represents 2x-5y< 15

55 bridesmaids want to make 325 325 decorations for a wedding. each decoration takes about 212 2 1 2 minutes to make. which response gives the best estimate for the amount of time each bridesmaid will spend making decorations?

Which shows the correct substitution of the values a,b and c from the equation 1=-2x+3x^2+1