Check the picture below, y = 0 when that happens

bear in mind the square root would give us a +/- roots, however, since this is seconds, a negative unit would be unfeasible, thus we only used the positive root from it.
Along the x-axis is the number of songs purchased. Along the y-axis is the amount of money left.
Answer:
1. x = 5
Step-by-step explanation:
1.
The Trapezoid Midsegment Theorem states that a line segment connecting the midpoints of the legs of the trapezoid is parallel to the bases, and equal to half their sum.
In this problem you can see that 5x - 1 is the midsegment of the trapezoid, so using the rule:

solve:

2. Diagonals are congruent
You can see in this picture that the diagonals are not always congruent:
Answer:
Sorry but i don’t know what a would be because I didn’t learn that yet, but I can help with b
Step-by-step explanation:
B) in 2025, there will be about 451 graduating seniors
in the graduates column you can see the numbers increase by 8
so add 387 to 8 multiple times, then each number gets you your year
do this until you get to 2025 hope this makes sense