Answer: 7x^2-8x+10
Step-by-step explanation: hope this helps gl :)
thx for the points
I’m assuming 15 1 over 2 means 15.5 or 15 1/2, in which case your answer would be 4.9 • 15.5 = 75.95 cm.
$13.43
Given: To mail a first-class letter, it costs $0.13 for one ounce. From then, the additional ounce's cost $0.7.
Hence, equation can be created:
y = 0.13 + 0.7(x) where 'y' is <u>total cost</u>, 'x' is <u>additional ounces</u>
<h3>Here,</h3>
<u>additional ounces</u>: 19.89 - 1 = 18.89 ounces 19 ounces
<u>Total cost</u>: y = 0.13 + 0.7(19) ⇒ y = 13.43