Question

Maria works as a part- time waitress and earns $30 per day plus 2% of all sales of food and drinks during the day

Answer 1

`y = 30 + 0.02x`

Explanation:

Required

Write an equation to present her daily earnings?

Let daily sales be represented by x and daily earnings be represented by y.

y is calculated as thus;

`y = Earnings + Commission * Sales`

`y = 30 + 2\% * x`

Convert percentage to decimal

`y = 30 + 0.02 * x`

`y = 30 + 0.02x`

Hence, her daily earnings is
`y = 30 + 0.02x`