Three-digit numbers are to be formed from 1,2,3,4,5,6,7,8 & 9. If repetition of digits is not allowed; a). How many numbers can be formed. b). How many numbers divisible by 5 can be formed?​

Name the quadrilaterals that have four equal sides.

Arianna is buying plants for her garden. she buys 15 flowering plants for $96. pink flowering plants sell for $8, and purple flowering plants sell for $5. how many pink flowering plants did arianna buy? i figured out the answer! the answer is 7. 8x +5y = 96 plug in 7 for x 8 (7) + 5y = 96 56 + 5y = 96 subtract 56 from both sides 5y/y = 40/5 y = 8 she bought 7 pink and 8 purple plants

Which of the following statement about pascal's triangle are true?