The area is 19.5 and the perimeter is 23.1

Let's solve this using unitary method ~
Therefore , the ostrich will run 105 meters in 5 seconds.
Answer:
exact form: 29/4
mixed fraction: 7 1/4
Step-by-step explanation:
150 * 8 = $1,200
150 / 2 = $75
$1,200 + $75 = 1275
Answer:
1 dollar every 1/39 hour
Step-by-step explanation:
If Christopher earns $78 in two hours, he must earn $39 dollars in one hour because 78/2 is 39. Therefore, every hour Christopher earns $39. To find the amount of hours per dollar, divide 1, the hour, by 39, the money per hour, to get 1/39.