Four times the sum of a number and -3 is 27 less than the number

you have 4 litres of 30% alcohol solution. How many litres of pure water needs to be added to make a 5% alcohol[..]

For his birthday party Jose mixed together 6 gal. of Brand A fruit punch and 4 gal. of apple juice. If Brand A[..]

three times the square of a number plus 6 times the number is -3. what is the number?

Larry drove 96 miles in 1.5 hours. How far did he drive in one hour?

Suppose a van seats seven people. In how many arrangements can seven people be seated if only four of the seven can[..]

a burger costs dhs 0.89.how many can you buy for dhs13.35

the mall has 135 stores and milton went to one-third of them. how many stores did milton explore?

the height of a cylinder is 12cm and the radius is 3cm. 32 identical cylinders are packed into a square based box.[..]

convert 5/2 minutes to seconds. show all workings.