2x - 5y = -22
1x + 7y=27

 and  

Step-by-step explanation:

Given:

       equation:1

           equation:2

If two such equation is given, we can find the value of x and y by solving one equation in terms of single variable and putting it to the other equation to find the value of the second variable which gives the value of x and y.

Solving equation 2 to find the value of x in terms of y:

            equation: 3

Putting the value of x in equation:1

Putting the value of 'y' in equation:3

for a it would be 24 children.

for b i don't understand the question. is it saying for each individual person they pick 5 reds to 7 greens or is it the whole group. clarify and i hope this can you.

step-by-step explanation:

step-by-step explanation: