A negative plus a negative equals a negative so it's just -17
Answer:
The actual height is 150ft
Step-by-step explanation:
Given


Required
Determine the actual height
Substitute 60ft for width in: 

Express as fraction


Make height the subject



Answer:
B. The range of the function is all real numbers
I'm pretty sure it depends what kind of triangle it is
When you multiply a number by 5 and then by 2 it is the same as multiplying by 10. multiplying by 10 means you add a zero to the end of the number so the digit in the ones column will be always be zero