Elisa is 9 years old. When 7 is subtracted from Krista's age and 1/4 of the difference is taken, the result is equal to Elisa's age. How old is Krista?

Which statements describe a parallelogram that must be a rectangle? Select each correct answer. parallelogram with opposite sides congruent parallelogram with a right angle parallelogram with congruent diagonals parallelogram with perpendicular

Write 23 in scientific notation

David purchased some cookies at the cost of 5 for $4 and sold 4 for $5. He made a profit of $90. How many cookies did he purchase and sell to make that much money

Needing to find answer for using digits 1 to 9 no more than once to create three fractions that are close but not equal to zero one half and one as possible

Connor talk to his phone for 1 hour and 12 minutes to talk to his grandmother for 14.5 minutes, his aunt for 17.25. How many minutes did he talk to Marilyn?

A will states that nine tenths 9 10 of an estate is to be divided among relatives. Of the remaining estate, one half 1 2 goes to the American Cancer Society. What fraction of the estate goes to the American Cancer Society?

Find the value 9x10^4

It takes Dan 32 minutes to complete 2 pages of math homework. At this rate, how many pages does he complete in 200 minutes?

Most Americans throw away about 1,365 pounds of trash each year. Is it reasonable to estimate that Americans throw away over 10,000 pounds of trash in 5 years? Explain.

Blanca has $38,800 in a savings account. The interest rate is 9% per year and is not compounded. How much interest will she earn in 9 months? simple interest