The scatter plot shows the number of years of experience, , and the hourly pay rate, , for each of cashiers in California. x123456789101112y24681012141618200 Use the equation of the line of best fit, , to answer the questions below. Give exact answers, not rounded approximations. (a) For an increase of one year of experience, what is the predicted increase in the hourly pay rate? (b) What is the predicted hourly pay rate for a cashier who doesn't have any experience? (c) What is the predicted hourly pay rate for a cashier with years of experience?

a) $0.95

b) $7.95

c) $12.70

Step-by-step explanation:

Please refer to the diagram below to understand the complete question. The equation for line of best fit is: ; where represents the number of years of experience and represents the hourly pay rate.

We use this equation to find the answers.

a) To find the pay rate increase per year of experience, we substitute in the equation of line of best fit.

and then

Find the difference between both years:

9.85-8.90 = 0.95

Answer is $0.95

b) To find the pay of a cashier with zero experience, we substitute in the equation.

Answer is $7.95

c) A cashier with five years of experience, will receive:

Answer is $12.70

answer:

total cost for tiles and paints is $924.  

step-by-step explanation:

we have been given that a community hall is in the shape of a cuboid. the hall is 40m long 15m high and 3m wide.

the paint will be required for 4 walls and ceiling.

let us find area of walls and ceiling.

therefore, the area of walls and ceiling is 1410 square meters.

given: cost for 10 litre of paint is $10 and 10 litre paint covers 25 square meter. therefore,

therefore, the total painting cost is $564.

tiles will be required for floor. let us find the area of floor.

given: 1m squared floor tiles costs $3. so,

therefore, the total tiles cost is $360.

now let us find combined total cost of tiles and paint.

therefore, the combined total cost of tiles and paint is $924.