Sally and mabel had the same number of cards at first. after sally sold 18 of her cards, mabel had four times as many cards as sally. how many cardsdid each girl have at first?

Tori has a cell phone plan that charges $0.09 for each text message sent. Tori plans to spend no more than $40 per month on her texting bill. If c (t) = 0.

It took 4 hours to row a boat 10 miles against the current. The return trip with the same current took 3 hours. Find the speed of the current.

Jeandre said |3| equals |-3|. Is this correct?

Give the domain of the function f (x) = - 3x+21

How to convert 3 mins into hours?

ABC Bookstore rents a storage space that is 75 ft x 50 ft and 15 ft high. It is charged $2.50 per square foot. How much does ABC Bookstore spend on storage space? O A. $140,625 O B. $9375 O C. $2500 O D. $3750

31/9 as a mixed number

Find 4x when 3x equals 3

Solve 64x3 - 1 = 0.

35x-3+2+146x=180 find value of x