Choose the scenario that describes a proportional relationship. A. Miguel earns $7.50 per hour while babysitting. B. a hotel charges a flat rate of $12.00 to park in their parking lot. C. a cellphone plan is $25 plus $0.05 per megabyte, MB, of data usage. D. Raphael sells paintings for $200 each at a market, but has to pay $100 to reserve a table.

whats the awnser

Step-by-step explanation:

Raphael sells paintings for $200 each at a market, but has to pay $100 to reserve a table. :)

Step-by-step explanation:

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)

1. 34

2. 268

3. x=14.4

step-by-step explanation: