Simplify 7p+2p-9p anyone know need answer asap

answer: 500=150+5.50s

step-by-step explanation: the budget of $500 is basically $150 plus the $5.50 and each student plus the 150 equals $500.

answer:

  9.5%

step-by-step explanation:

to find the percentage, we take the tax over the subtotal

percentage = tax/subtotal

                    =3.99/42

                      =.095

multiply by 100% to change from decimal to percent form

                  9.5%

answer:

probability that both cans were regular soda =  

step-by-step explanation:

probability =

we are given 12 total number of cans; 4 cans have been accidentally filled with diet soda.

probability that first can is a regular soda:

outcome that first can is a regular soda will give us the number of regular soda available which are 4

using formula of probability

total possible outcomes are, n(total) = 12

desired outcome: 4 (cans of regular soda)

p(1st can) =   =

probability that 2nd can is a regular soda:

as we have already taken a can of regular soda from the pack, the total soda in the pack now 11 and the regular soda left are 3.

total possible outcomes are, n(total) = 11

desired outcome: 3 (cans of regular soda as one has already been taken)

p(2nd can) =  

probability that both cans are regular soda:

p(both) = p(1st can) × p(2nd can)

              =

              =

answer:

she needs to do atleast 9 chores to have enough money to buy the cd.

step-by-step explanation:

13.50=3+(1.20*x)

10.50=1.20*x

x=8.75

this is rounded up to 9.