Please Help me on number 4

Step-by-step explanation:

a.here, 3x+y=6

reducing it into slope intercept form we get,

y=-3x+6

comparing it with y=mx+c we get,

slope(m)=-3 and

y-intercept (c)=6

b.here,y=5x+2

comparing it with y=mx+c we get,

slope(m)=5 and

y-intercept (c)=2

c.here,x=4y-1

reducing it into slope intercept form we get,

4y=x+1

or,y=x/4+1/4

comparing it with y=mx+c we get,

slope(m)=1/4 and

y-intercept (c)=1/4

d.here,y=-x+6

comparing it with y=mx+c we get,

slope(m)=-1 and

y-intercept (c)=6

36 girls

step-by-step explanation:

the 48 boys is 4 parts of the ratio

divide 48 by 4 to obtain one part of the ratio

= 12 ← 1 part of the ratio

3 parts = 3 × 12 = 36 ← number of girls