Ethan says that if the diameter of a bicycle wheel is 3.5 feet then its radius must be 1.75 feet. Is Ethan correct?

Yes he is correct

Explanation:

The radius is half the diameter

radius = diameter/2 = 3.5/2 = 1.75

yes hes right.

Step-by-step explanation:

d = 2 x 1.75

d = 3.5

c = 2 x pi x 1.75

c = 3.5

ur answer is 3.5 ethans right

f(x) is going down by 4

step-by-step explanation:

(its either that or its going left by 4)

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