24.
Find the circumference: (use 3.14 for pi):

circumference = 10.7 mm

Step-by-step explanation:

circumference of a circle = 2r

(where r is the radius)

Given:

⇒ circumference = 2 x 3.14 x 1.7 = 10.676 = 10.7 mm (nearest tenth)

is only a line? i think so

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