Answer:
that is impossible
Step-by-step explanation:
because you have 2 equations where y+z equal different numbers
Rosa has saved $490 in 6 weeks.
To find the answer to this, simply plug the number of weeks in for the value of x and solve.
f(x) = 250 + 40x
f(6) = 250 + 40(6)
f(6) = 250 + 240
f(6) = 490
Sub in 5 for x
y=(5)2 -9
y= 10-9
y= 1
