What is the percent of change in the cost of a hot dog

Ineed me i stuck and i don’t want to get it wrong

In a class, there are 12 girls. if the ratio of boys to girls is 5: 4 how many boys are there in the class

Examine the two-step equation. − 7 4 + x 4 = 2 which property of operations allows you to add the same constant term to both sides? amultiplication property of equality bdivision property of equality caddition property of equality dsubtraction property of equality