Answer:
Step-by-step explanation:







Answers in order:
7 + 7b - 4 = -6
7b + 1 = -6
7b = -7
b = -1
Hope this helps!
I got 1/81
hope this helps.
Factor by grouping.
(7x+2)(x-2) I think not sure
Type into your calculator (if you haven't already): log 54.
My result: was similar to yours.
Note, however, that we're supposed to round off these results to the nearest thousandths (not thousand).
Your 1.73239 would need to be rounded off to 1.732, with 2 being the nearest thousandths.
Elevation above sea level = 2x+50
rock climbers minute of climbing = x
2x + x + 50
3x + 50