if f(x) = x - 2, which of the following is the inverse of f(x)?
o a. f'(x) = 2x
o b. f-'(x) = 2 - *
o c. f-1(x) = x-2
o d. f-'(x) = x + 2
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How many 3-digit numbers can you write using only digits 1 and 7? (of course, digits can repeat.) how many 3-digit numbers can you write using only digits 1 and 7? (of course, digits can repeat.)

Each unit cost 14p, how much would 942 units cost?

Moesha is (3g+1) years old and shanti is twice moesha age. find the sum of the ages of moesha and shanti in 2 years time. how old will shanti be when moeshas age in twice her present age? find how old moesha and shanti were 4 years ago if g= 5