There is a bag with only red marbles and blue marbles. The probability of randomly choosing a red marble is
7/10th

There are 42 red marbles in the bag and each is equally likely to be chosen.
Work out how many marbles in total there must be.

60 marbles in total

Step-by-step explanation:

Find how many marbles there are in total by dividing 42 by 0.7:

42/0.7

= 60

So, there are 60 marbles in total

this is false ^.^ lol

she would want to sell 10 full-year subscriptions and at least 9 half-year subscriptions to get a total of at least $300. 

i hope this answer you! if you have any further questions or concerns, feel free to ask! : )

step-by-step explanation:

mark brainliest!