Give the correct model for the situation. Zoey earns $20 an hour babysitting plus a $5 flat rate for gas. How many hours must Zoey work to earn at least $125?

Group of answer choices

20h+5≤125

20h+5=125

20h+5≥125

20h−5=125

C

Step-by-step explanation:

when it says at least it means ≥ so c is the only on

solution:

the given function is ,

      =

the three roots of this quadratic function is , 0 ,8 and 10.all the roots are real and rational.

if a quadratic equation is of the form ,

sum of the roots = a + b +c= 0+8+10=18=  

product of roots taken two at a time = a b + b c+ c a = 0+80+0=80 =  

product of roots = a b c = 0=  

there are 11 doors in a hall starting from 0 to 11.the entry in the hall is permitted through gate number 0 and exit is allowed through only gate number 8 and 10.so, three roots(0,8,10) of quadratic function is given by entry and exit route of this hall.