Y=5x+30
X is the days
And so by plugging in x you get
y=5(5)+30
y=25+30
y=55
And so by day 5 she's running 55 minutes
But that's what I think
Right now sally is 10 years old. Hope this helps!
X/3=1351/7
cross multiply
7x=4053
divide by seven on both sides
x=579
Area of a square is length times by itself (length x width) so 12 cm x 12 cm
144cm squared
hope i helped :)
