Answer:
D
Step-by-step explanation:
D's equation shows y equals 7.8 times x. 7.8 is the unit rate.
The angles will help you tell the difference. In a rectangle, all angles are 90 degrees. In a rhombus, the 2 opposite facing angles are the same and all side lengths are the same.
Hope I helped. :P
Your equations would be 3x+1y=86 and x+y=42
the answer would be 22 field goals and 20 extra points.

Convert mixed numbers to improper fractions

Find de LCD for 4 and 8 :
Factor each denominator into its primes:


Find the least common denominator

Adjust fractions based on the LCD :

Since the denominators are equal , combine the fractions:



Therefore:
Convert improper fractions to mixed numbers

hope this helps!