Three-fourths of the difference of a number and 7 is negative fifteen. What is the number? (Please solve very clear and step by step and I'll give u brainlest)

Agreeting card company can produce a box of cards for $7.50. if the initial investment by the company was $50,000, how many boxes of cards must be produced before the average cost per box falls to $10.50?

Tcan be concluded that % of the seniors would prefer to see more candid pictures in this year's edition of the yearbook.

25 ! the line of best fit is h = 5a + 86. predict the height at age 16. show your work.