Let
x----------> <span>Aidan's age
y----------> M</span><span>aggie's age
we know that
x=4
x=(y/2)-6
so
substitute
4=(y/2)-6----> multiply by 2-----> 8=y-12----> y=8+12-----> y=20
the answer is
</span>M<span>aggie's age is </span><span>20</span>
Answer:
the first step should be of subtracting 15 from 7
The coordinates would be multiplied by 3, as the scale factor is 3, and it is a dilation, so we know the size increases.
2090 you could use I calculator to answer this though.