From the equations below, which one is another example of an equation with exactly ONE solution?
3m + 5 = 3m
8m - 4 = 8m - 4
3m + 9 = 12

last one

Step-by-step explanation:

the first one doesn't have any solution, the second one has infinite solutions.

rick has $1400 and sally has $1500

step-by-step explanation:

to find amount of money rick has after 10 years :

principal = $1000 , time = 10 years , rate = 4% annually

to find amount of money sally has after 10 years :

her friend gives to pay her $50 per year, therefore money she has after 10 years = 50 × 10 = $500

also, sally gets $1000 after 10 years,

therefore, total amount of money sally has after 10 years = 500 + 1000 = $1500

so, after 10 years : rick has $1400 and sally has $1500