Craig has a job waiting tables where he earns $3.15 per hour plus tips. craig earned $79.48 in tips during his shift yesterday.

if x represents the number of hours craig worked yesterday, which of the following equations can be used to find the amount of money craig earned yesterday?

a.
y = 3.15x + 79.48
b.
y = 79.48x + 3.15
c.
y = 79.48x - 3.15
d.
y = 3.15x - 79.48

Quadrilateral wxyz is on a coordinate plane. segment yz is on the line x+y=7 and segment xw is on the line x+y=3. which statement proves how segments yz and xw are related

Circle a has a diameter of 7 inches, a circumference of 21.98 inches, and an area of 38.465 square inches. the diameter of circle b is 6 inches, the circumference is 18.84 inches, and the area is 28.26 square inches. part a: using the formula for circumference, solve for the value of pi for each circle. (4 points) part b: use the formula for area and solve for the value of pi for each circle. (4 points)

Awater tank holds 18000 gallons. how long will it take for the water level to reach 6000 gallons if the water is used at anaverage rate of 450 gallons per day