Lucy is running a test on her car engine that requires her car to be moving. the tolerance for the variation in her car's speed, in miles/hour, while
running the test is given by the inequality |x-60 s 3. assume x is the actual speed of the car at any time during the test.
the minimum acceptable speed is
m
iles/hour, and maximum acceptable speed is
m
iles/hour.

step-by-step explanation:

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