Answer:

or

Step-by-step explanation:
Divide the numerator and the denominator by the same number:

or
Multiply the numerator and the denominator by the same number:

Answer:
Perimeter = 42 units Area = 57.73 square units
Step-by-step explanation:
Perimeter of an Astroid = 6l ---> 6 x 7 = 42 units
Area of an Astroid = (3 x pi x a^2)/8 = 57.73 square units
Answer:
Step-by-step explanation:
b
If similarity ratio means the ratio between the lengths of the cubes:
=Mr.Lehmans hourly rate for labor is 20$
=30+40=70-50=20