The cost C, in dollars, of renting a moving truck for a day is given by the function C(x)=0.20x+45, where x is the number of miles driven. SHOW FULL WORKING

(a) What is the cost if a person drives x=80 miles?

(b) If the cost of renting the moving truck is $60, how many miles did the person drive?

(c) Suppose that a person wants the cost to be no more than $150. What is the maximum number of miles the person can drive?

(d) What is the implied domain of C?

The blue whale is the largest animal living on the earth. the average blue whale measures 100 feet long (30 meters) and weighs 300,000 pounds (136,000 kilograms). a whale’s head is 1⁄3 of the length of its body. a new baby whale is 1⁄4 the length of a grown whale. the average man is 1⁄17 the length of a blue whale, and 1⁄1,818 its weight. a human baby measures 1⁄4 of the length of an adult. calculate the following information: how long is a whale’s head? how long is a new baby whale? how tall is the average man? how much does the average man weigh? how tall is the average human baby?

According to the number line, what is the distance between points a and b? v ++ + + + + -16 -14 -12 -10 -8 + 6 + 4 + -2 + 0 + 2 + 4 + 6 + 8 + 10 + 12 + 14 + 16 o6 units o 7 units 12 units o 14 units

Need this asap if anyone can i would be very grateful. if you could show workings that would really