5. We can find the tax rate on the $78 item that cost $82.68 after tax by using the equation:
Percent x 78. This gives
us the decimal: Part =
which is
%.

ab will be equal to

50-38=12

step-by-step explanation:

the inequality is:

250c+180g≥950

step-by-step explanation:

let c denotes the number of days in a week   miyoko worked as a cryptographer.

and g denotes the number of days in a week she works as a geologist.

now we are given that she earns $250 for every day she works as a cryptographer,and earns $180 for every day she works as a geologist.

now miyoko's goal is to earn more than $950 this week.

hence, the inequality could be represented as:

250c+180g≥950