Which equation has the solution x=7x=7?

Ill mark the brainliest if you me with the these three questions 7,8,9

If abcde is reflected over the x-axis and then translated 3 units left, what are the new coordinates d?

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