PLEASE HELP! What is the meaning of the point with an x-coordinate of 2?
Speed of
Commuter Train
280
240
200
160
Distance (feet)
120
80
40
2
4
6
8 10 12 14
Time (seconds)

Identify an equation in point slope form for the line perpendicular to y=3x+5 that passes through (4,-1)

What is the measure of ac? 5 units 13 units 26 units 39 units 3x- 2b 6x + 9

Serena is making an experiment. for that, she needs 20 grams of a 52% solution of salt. she has two large bottles of salt water: one with 40% and the other with 70% of salt in them. how much of each must she use to make the solution she needs? i am in need of