What is the least common multiple of 18 and 24 and 42

Jose predicted that he would sell 48 umbrellas. he actually sold 72 umbrellas. what are the values of a and b in the table below? round to the nearest tenth if necessary

Mr. rose asked his students to draw a quadrilateral with 4 unequal sides. draw an example of this kind of quadrilateral.

Describe a situation where it would be beneficial to round decimals to the nearest dollar. explain why you would use rounding in that situation.