here is my question: Find the rule which gives the number of matchsticks required to make the following matchstick patterns?

Danielle earns a 7.25% commission on everything she sells at the electronics store where she works. she also earns a base salary of $750 per week. what were her sales last week if her total earnings for the week were $1,076.25?

What’s the answer ? use the picture to see the problem

Find an bif a = {3, 6, 9, 12) and b = {2, 4, 6, 8, 10).