18/30 = $0.6 per message
0.6 * 12 = 7.2
Solution: $7.20 for 12 messages
X = 4 and x = 6
The zeros of a quadratic function are when the parabola crosses the x axis.
Here it crosses the x axis at x=4 and x=6
40 feet or 13 yards and 1 foot
using the conversion
1 yard = 3 feet then 1 yard 2 feet = 5 feet ← material for 1 pillow, hence
8 pillows require 8 × 5 = 40 feet
The sum is 8 wholes because if you add 3 and 2 you get 5 and the denominator stays the same so that becomes a whole and you add that 7 wholes plus the other 1 whole and you get 8
