The ligth of two lighthouses in the sea flash at regular intervals of every 12 minutes and 18 minutes respectively. The first flash together at 9 p.m. When is the next time they will flash together again?

Charlos drank 1/5 can of soft drink every day. How many cans of soft drink did he drink after 65 days?

Susan planted 40/50 of a packet of sunflower seeds in twenty equal rows. what fraction of the packet of sunflower seeds does each row contain?

Determine the value of x if : x/3 = 21/9

Fill in the blanks with <= or >= to make the following statements true. "That wallet contains not more than $80. That wallet has...$80.

Least Common Multiple of 130,140, and 150.

Hasil dari : -3 - (-1) - (-5) = .....

Fill in the blanks with <= or >= to make the following statements true. "Class 7E has at least 40 students. The number of students in class 7E is ...40

Use the divisibility tests to check if 12.345.625 is divisible by 9?

Highest Common Factor of 130, 140, and 150.

20 : (2/3 - 1/6) + 80% - 14/5 = ....

Arrange the fractions 7/5, 31/15, 11/6 in descending order.