Y< 4-2x will give brainliest and 20 points

See the attached for a graph.

Step-by-step explanation:

The edge of the solution space is marked by the line ...

... y = 4 - 2x

This is in slope-intercept form. It has a y-intercept of 4 and a slope of -2. Because the relation symbol is "less than" (with no "or equal to"), the line itself is not part of the solution space. It is graphed as a dashed line for that reason.

The values of y in the solution space are those less than the ones that make up the line, so the shading is of the half-plane below the line.

A)
50 minutes swimming a day
breast=y
butterfly=x

breast 20 minutes more than butterfly:
I: y=20+x

50 minutes a day:
II: 50=x+y

B)solve equation system:
substitute y=20+x into II:
50=x+(20+x)
30=2x
15=x

-> insert into I:
y=20+15
y=35
-> 35 minutes breaststrokes a day

C)No
if he had practiced butterflys for 45 min, breast would be at 65 min or in total 100 minutes and not the 50 per day he claims