Yea. The text book is either wrong or it knows something that we don't. Like as to why they would need to have two more feet. You're right though
92+ 15x > $800 I cannot do the greater than or equal sign on my phone.
15x> 800-92
15x> 708
X > 47.2 weeks… this should be greater than or equal to 47.2 weeks or if whole weeks, 48 weeks
Not sure if you need a whole number (week) or a fraction of week to answer. If whole week, it would need to be greater than or equal to 48 weeks
Answer: 15 I guess ?
Step-by-step explanation:
The firs number: a
The second number: b
a-b=4
a²+b²=58
Lets write b+4 instead of a.
(b+4)² + b² = 58
b²+8b+16+b²=58
2b²+8b+16=58
2b²+8b-42=0
b²+4b-21=0
(b+7).(b-3)=0
b=-7 or b=3
But, b can't equal to -7 because these number are naturel numbers. It must be positive.
b=3
for b=3; a-3=4; a=7
Step-by-step explanation:
It is given that the result displayed on the calculator screen is
. We need to say out of all options, which options represent the equivalent number.
.....(1)
Option (2) is correct i.e. 
From eq2uation (1)

Option (4) is correct.