Raman had 200 stamps. He sold 20% of his stamps and gave his friend 40% of
the remainder. Calculate:
a. how many stamps Raman sold.
b. how many stamps Raman’s friend
received?
c. how many stamps Raman kept.​

The average number of vehicles waiting in line to enter a parking lot can be modeled by the function f left parenthesis x right x squared over 2 left parenthesis 1 minus x right parenthesis endfraction , where x is a number between 0 and 1 known as the traffic intensity. find the rate of change of the number of vehicles waiting with respect to the traffic intensity for the intensities (a) xequals0.3 and (b) xequals0.6.

8000 + 8800 + 8000 + 8 million + 80 trillion + another a katrillion equals

[10 points, algebra 2-simplifying complex fractions]according to my answer key the restrictions are -1 and 4. but why not positive 1?