An oil company fill 1/10 of a tank in 1/5 hour. At this rate which expression can be used to determine how long it will take for the tank to fill completely? 1/5 x 10 hours
1/10 x 5 hours
1/5 x 1/10 hour
5 x 10 hours

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 : )