Rani delivers bills to letterboxes and is paid $28 per thousand

a) how much does she earn for delivering 2500 items?
b) How many must she deliver to earn $100?
c) if she takes 6 hours to deliver each thousand on average, what is her hourly rate of pay?

a) $70

b) 4000 items

c)$4.67/hr

Step-by-step explanation:

a) simplest, 28 (per 1000) x2 plus 14 for 500

b) 28*4=112. it could be 3.57143, but no one wants part of an item

c) 28/6=4.66667

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let f (x ) is a function and c be a positive real number,   the graph of the function g (x ) = f (cx ) is represented as follows.

when, c > 1,   the function compresses it in the x - direction.

when, 0 < c < 1, the function stretches it.

the function is g ( x ) = (9x )2.

the heighest power of x in g ( x ) = (9x )2 is 2, so the parent function is square function.

the equation of parent function is f ( x ) = x 2 .

the function is g ( x ) = (9x )2 and the parent function is f ( x ) = x 2 .

so, the functions f and g have the following relationship.

g ( x ) = f ( 9x ).

compare the function g ( x ) = f ( 9x ) with g (x ) = f (cx ).

c = 9 ( > 1 ).

so, the function g (x ) = (9x )2 compresses it in the x - direction.

step-by-step explanation: