What is a whole number that can go in 30 and not in 15

Mario's company makes unusually shaped imitation gemstones. One gemstone had 10 faces and 12 vertices. How many edges did the gemstone have?

What is 0.8 in fraction

The resulting figure after undergoing a transformation

Find the LCM and HCF of the following integers by applying the Prime factorisation method 1) 12,15 & 21 2) * 17,23 & 29 3) 8,9 & 25

Mark achin sells 3,600 electric motors each year. the cost of these is $200 each, and demand is constant throughout the year. the cost of placing an order is $40, while the holding cost is $20 per unit per year.

A photograph club has 100 members and 45 are women what fraction of women represent

Find the mean of 7 numbers if the mean of the first 4 numbers is 5 and the mean of the last 3 numbers is 12. What is the mean of the combined data sets?

1/2 (8-4x) Simplify using distributive property

I am thinking of a number. if you divide my number by 3 and add - 3 you get 4 what is my number

Divide. 4.8 : 10,000 Enter your answer as a decimal in the box.