Sally has 45 balloons. She buys 31 more balloons. How many balloons does she
have now?
A
76 balloons
B
77 balloons
C 66 balloons
D
14 balloons

76 a

Step-by-step explanation:

A. 76 balloons

Step-by-step explanation:

if she starts with 45 and gets 31 more, she's adding the 31 new balloons. so you add 45 plus 31 which makes 76. so the answers A. 76

the answer is true.

step-by-step explanation:

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.