Answer:
82cm
Step-by-step explanation:
26+26+15+15=82
Answer:
x + y = 20
Step-by-step explanation:
Let the amount collected by Alexa = $x
& the amount collected by Daniel = $y
Total amount collected = $20
Therefore,
x + y = 20
Answer:
5.1
Step-by-step explanation:
Answer:
$21
Step-by-step explanation:
40% of 15 is 6, and 15 + 6 is 21
Answer: 9
Step-by-step explanation:
Use Pythagorean's Theorem for a right triangle.

