Acombination lock uses three numbers between 1 and 57 with repetition, and they must be selected in the correct sequence. which of the five counting rules is used to find that number? how many different "combinations" are possible? is the name of "combination lock" appropriate? if not, what other name would be better?

Tomas is making trail mix using granola and walnuts. he can spend a total of $12 on the ingredients. he buys 3 pounds of granola that costs $2.00 per pound. the walnuts cost $6 per pound. he uses the equation to represent the total cost, where x represents the number of pounds of granola and y represents the number of pounds of walnuts. he solves the equation for y, the number of pounds of walnuts he can buy. answer- b tomas added 6 to both sides of the equation instead of subtracting 6. just took the test

8000 + 8800 + 8000 + 8 million + 80 trillion + another a katrillion equals

Part a: sam rented a boat at $225 for 2 days. if he rents the same boat for 5 days, he has to pay a total rent of $480. write an equation in the standard form to represent the total rent (y) that sam has to pay for renting the boat for x days. (4 points)