In the following problem, which step uses the additive identity to get to the next step.
1. -18+73+18
2. -18 +18+73
3. 0+73
4. 73
step 1, 2, 3, or 4?

Question 7 of 47 1 point what is the equation of a line with a slope of 1/2 that passes through the point, (-2,5)? o a. 1/2x+3 o b. y=1/2x+5 o c. y=x+5 o d. y=1/2x+6

Find the slope of a line given the following two points

In δabc, m∠acb = 90°, cd ⊥ ab and m∠acd = 45°. find: a find cd, if bc = 3 in