Evaluate the expression - 2b+x when b=3 and x=-4

Harrison Stationery sells cards in packs of 5 and envelopes in packs of 16. If Eddie wants the same number of each, what is the minimum number of cards that he will have to buy?

112.324 nearest hundredth

A problem states that Ursala earns $9 per hour to write an expression that tells how much money ursala earns for h hours joshua wrote 9 over h Sarah wrote 9h whose expression is correct and why

Is 1.5 m greater than 145 cm

If you have a bag of marbles with eight of them blue 4 are yellow and six green. If you want to make the probability of selecting yellow marble 30%, how many would you add to the bag?

There are two boxes, one has a dimension of 6x2x3 and the other has dimension of 2x3x6. Which is bigger?

A box with 3 metal balls weighs 1840 kg. Each metal ball weighs thrice as heavy as the box. How much does a box with 1 metal ball weigh?

What is 999999x999999999

The number of pieces of popcorn in a large movie theatre popcorn bucket is normally distributed, with a mean of 1515 and a standard deviation of 15.

Between the mean and 0.35 deviations from the mean