If 12 people walk in a meeting and all of them shake hands how many handsshakes are there

Natalie read 14 books last year. Six of the books were nonfiction. The rest were fiction. What is the ratio of nonfiction to fiction books that Natalie read? A-4:7 B-3:7 C-3:4 D-14:6

A certain elevator has a maximum weight capacity of 1,000 kilograms. Ten people weighing a total of 7,000 hectograms get on the elevator. How much more weight can the elevator hold before it reaches its maximum capacity?

Increase 250ml by 85%

Solve the system of equations. - 5x + 12y - 10 = 0 BR 2x - 3y + 35 = 0

Round to the nearest hundredth 4.644

Five times matthew's age plus 2 times Cooper's age is 52. Coopers age is also 4 times Matthews age. How old is cooper?

When you find 420% of 85, what are you looking for? Are you looking for the percent, the part, the whole or a ratio

Which of the following rates is proportional to $2.50 for 5 cans? A. $2.00 for 3 cans B. $4.00 for 7 cans C. $4.50 for 9 cans D. $1.50 for 1 can

6) 8x + 38 = -34-6 - 4x)

One bricklayer can build a wall in 6 hours. another bricklayer could build the same wall in 4 hours. if they work together, how long will it take to build the wall?