What is the justification for step 3 in the solution process?
0.8a -0.1a = a - 2.5
step 1: 0.7a= a-2.5
step 2: -0.3a = -2.5
step 3: a = 8.3

4+(2+x) can you me solve this problem

Question 3(multiple choice worth 1 points) use the arc length formula and the given information to find r. s = 16 cm, θ = 48°; r = ? sixty divided by pi cm thirty divided by pi cm one third cm one hundred twenty divided by pi cm

If np3 /nc2 = 6, find the value of n