The total cost of 3 non member tickets and 5 member tickets

How many different three-digit numbers can be formed using the digits 1 comma 2 comma 9 comma 6 comma 4 comma 3 comma and 8 without repetition? for example, 664 is not allowed.

The sum of two numbers is 0. twice the smaller number subtracted from 3 times the larger number is 10. let x represent the larger number and y represent the smaller number. what is the equation

Anewly planted tree needs to b stacked witg three wires. each wire is attached to the trunk 3ft abouve the ground and anchored to the ground 4ft fromthe base of the three