Mary can build 2 sand castles (c) in 4 hours (t). Write an equation in the form of c=rt that represents the relationship between the number of sand castles (c) and time (t), where r is the constant of proportionality.

X-7y=3 8x+7y=6 9x = ?

Melissa has a student dictionary on her desk. Her dictionary contains 86 pages. In this dictionary, more words start with the letter "S" than any other letter, occupying 15 full pages.

139x12.54+8.27*8.27*6%=

Write an equivalent expression. (-11f) - 2 (-f - 4) - 10

What does quanties mean

Bobby has baseball practice Monday, Wednesday, and Friday. Each practice is 2 1/2 hours. Bobby says he will have practice for 4 hours each week. Part A Without multiplying, explain how you know Bobby is incorrect.

What is an algebraic representation

Without solving them, say whether these equations have a positive solution, a negative solution, a zero solution, or no solution. Positive solution = the answer is a positive number. Negative solution = the answer is a negative number.

The height of a parallelogram is 4.5 CM the base is twice the height what is the area

If the ratio white pens to green pens is 2 to 8 and there are a total of 30 pens how many pens are white.