There were 28 students in mrs. joy's class. Only 21 students were at school. What percent of the class was at school?

75% of students were in class

Step-by-step explanation: Notice how 28 is a multiple of 7. This means that 28 ÷ 7 is 4. Which makes 7, 25%

14, 50%

21, 75%

And 28, 100%

the multiples of 15 are 15, 30,45, 60, 75, 90, 105, 120, 135, 150, 165, 180, 195,   210, 225, 240, 255, 270, 285, 300, 315, 330, 345, 360, 375,   390, 405, 420, 435, 450, 465, 480, 495, 510, 525, 540, 555, 570, 585, 600, 615, 630, 645, 660, 675, 690, 705, 720, and 735.

the factors of 15 are 1, 3, 5, and 15.

hope that , fam!

-une, your fren : )

final total: 63

step-by-step explanation:

60 times sales tax

60 times 0.05

3

60 + 3

63