Jackson has $20 in his account. He uses a credit card to spend $30 on a coat and $10 on a movie. Jackson then deposits $50 into his account. How much will Jackson have left after he pays the credit card bill?

$30

Step-by-step explanation:

Step one:

Jackson has $20 in his account

He uses a credit card to spend $30 and $10

total credit owed is $40

Required

His account balance after debt payment

Step two:

his balance will be = 20-40= -$20

Jackson then deposits $50 into his account

His new balance will be

-20+50= $30

step-by-step explanation:

the original amount doesn't ''re just looking for the time it takes for 1/2 of the substance to we have

(1/2) =)     take the ln   of both sides

ln (1/2)   = )   and we can write

ln(1/2) = ) lne     and lne   = 1     so we have

ln(1/2) = -.1092t     divide both sides by -.1092

t = ln(1/2)/-.1092 = about 6.347 days = about 6.3 days (rounded)

the answer is 844

step-by-step explanation:

it is 844 because if you add 836.50 + 7.5 you will get 844