Answer:
D) $8.20
Step-by-step explanation:
82 x 0.1 = 8.2
The first set of expressions bc 3x is equivalent to 3x and -7y is equivalent to -7y
Answer:
#1: 5
#2: 
Step-by-step explanation:
Inverse of Pythagorean Theorem: c²-b²=a²
c² b² a²
13²- 12² = 25
= 5
Pythagorean Theorem: a²+b²=c²
a² b² c²
2² + 6² = 40
c = 