15 points !

using the chart and writing an equation, a collection of 52 dimes and nickels is worth $4.50. how many nickels are there? i need ! !

If the graphs of the linear equations in a system are parallel, what does that mean about the possible solution(s) of the system? a. there are infinitely many solutions. b. there is no solution. c. there is exactly one solution. d. the lines in a system cannot be parallel.

Bobs burgers bam has a special deal of 4 hamburgers for $6. at that rate, how much should it cost to buy 3 hamburgers?

I’m really confused and need to learn this