1) R
2) A
5) I
7) Q
8) N
9) L
10) H
11) U
12) E
13) Y
Sorry I could on see these ones. The fractions were a bit hard to see but I hope this helped a bit.
2x + 7 = 3
2x = 3 - 7
2x = -5
x = -5/2
25% = 25/100 = 0.25
9*0.25 = 2.25.
You save $2.25 with the discount.
The first vector's speed is 12.57 meters for one second
The second vector's speed is 5.21 meters for one second
The total distance is 12.57+5.21 = 17.78 meters over two seconds
Hence the speed is 17.78 / 2 = 8.89m/s