A car rental agency charges 34 $ per day to rent a car and 12.95$ per day for a global positioning system (GPS). Customers are charged for their full tank of gas at $3.60 per gallon. A car has a 14 gallon tank and a GPS. a) Write a function rule for the total bill b as a function of the days d the car is rented.
b) What is the bill for a day rental?
a) Choose the correct function rule for the total bill b as a function of the days d the car is rented.
(Type an integer or a decimal.)

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

What is the area of the triangle 10 13 12

Afactory makes propeller drive shafts for ships. a quality assurance engineer at the factory needs to estimate the true mean length of the shafts. she randomly selects four drive shafts made at the factory, measures their lengths, and finds their sample mean to be 1000 mm. the lengths are known to follow a normal distribution whose standard deviation is 2 mm. calculate a 95% confidence interval for the true mean length of the shafts. input your answers for the margin of error, lower bound, and upper bound.