Answer:
a) x = 4 cm
Step-by-step explanation:
x + 2x + 2x = 20 cm
5x = 20
x = 4 cm
For this case we must find an expression equivalent to:
By definition of power properties we have to meet:
So, rewriting the expression we have:
Answer:
Option B
Is this the entire question?
Answer:
95$!
Step-by-step explanation:
475 x 20% = 95
Answer:
15(5)+3=78
21(5)+4=109
78+109=187
Step-by-step explanation: