the answer : 1.80x+0.40=$13
Answer:
Step-by-step explanation:
If two numbers have the same base, add the powers
5³ * 5⁴ = 5⁽³⁺⁴⁾ = 5⁷
a+b+c = 180
48+59+b=180
107+b=180
b=180-107
b=73