Tessa has nine children and hires two babysitters at a time. Tim charges $15 per hour with the first hour free,
and Yu charges $10 per hour plus a flat fee of $20.
Write an expression for Tessa's total cost, and say what
the variable represents. If they both work 8 hours,
what's Tessa's total cost?

the system of inequity is

step-by-step explanation:

from the given graph it is noticed that we have two related lines. one is solid and another is dashed.

if a line passing through two points, then the equation of line is

the solid line passing through the points (0,4) and (4,0).

the related equation of solid line is .

similarly, find the related equation of dashed line. the dashed liune passing through the points (0,0) and (3,1).

the related equation of dashed line is

from the given graph it is noticed that the point (0,1) lies on the shaded region, therefore the point (0,1) must be satisfied by the related equations.

check the related equations by the point (0,1).

this statement is true if the sign of inequality is < instead of equality. since it is an solid line therefore the sign of inequality will be . the required inequality is

similarly, check the second related equation.

it is a dashed line, so this statement is true if the sign of inequality is > . the required inequality is

answer: 1inch=7days  

12inch=12*7=84days

step-by-step explanation:

central angle of a triangle has the same measure as its intercepted arc.

step-by-step explanation:

the real question is why is this guys last name heavyfoot

step-by-step explanation: