Find the unit rate
a) 180 miles in 3 hours (how many miles in 1 hour)
b) 256 miles per 8 gallons (how many miles per gallon)
c) $9.60 for 4 pounds (how much per pound)
d) $4.80 for 6 cans (how much per can)
e) 297 words in 5.5 minutes (how many word per minute)

Use the radius you found in part i (r=26.8 cm) with the surface area formula below to find the surface area of the sphere. show your work and round your answer to the nearest tenth. the surface area of a sphere: sa = 4πr^2 self note: 3.8.4

Eric has challenged himself to walk 24,000 steps in 4 days. if eric walks the same number of steps each day, which function represents the number of steps eric still needs to walk to reach his goal with respect to the number of days since he started his challenge? a. y = 8,000x − 24,000 b. y = -8,000x + 24,000 c. y = 6,000x − 24,000 d. y = -6,000x + 24,000

The weight of an object in the water is 7% of its weight out of the water. what is the weight of a 652g object in the water?