3a + b = 225 b = a - 15

A.) 3a + b = a -15
B.) 3a + a = 225
C.) 3a + a - 15 = 225
D.) b = 3a + b

Select 2 statements that are true about the equation y+6=-10(x-3).1) the slope of the line is -102) the slope of the line is 33) one point on the line is (3,6)4) one point on the line is (3,-6)

Which of the following is closest to 32.9 x 7.5? a: 232 b: 259 c: 220 d: 265

What is the gcf of 20c^3-5c^4+30c^6