Answer two questions about Systems A and B: System A
System B
— 4x — бу = 9
— 4x — бу = 9
3x +y = -4
-2 - 5y = 5
1) How can we get System B from System A?
2)Based on the previous answer, are the systems equivalent?In other words, do they have the same solution?

When keisha installed a fence along the 200 foot perimeter of her rectangular back yard, she left an opening for a gate.in the diagram below, she used x to represent the length in feet of the gate? what is the value? a. 10 b. 20 c. 25 d. 30

Suppose you just purchased a digital music player and have put 8 tracks on it. after listening to them you decide that you like 4 of the songs. with the random feature on your player, each of the 8 songs is played once in random order. find the probability that among the first two songs played (a) you like both of them. would this be unusual? (b) you like neither of them. (c) you like exactly one of them. (d) redo () if a song can be replayed before all 8 songs are played.

Precalculus question, image attached.