Need help on this question asap pleasee

15 cm

Step-by-step explanation:

=

cross multiply and solve for x

or just notice that the fraction reduces to 1/2 and 15 is half of 30

y-1700=200(x+4)

step-by-step explanation:

200(x+4) is 200x + 800 she is saving 200 per week x is the weeks and the -1700 is. us that’s howmuch she already had

the mistake in the pattern is that :

b. the decimal point was moved one too many place values each time

the correct pattern could be made by :

b. moving the decimal point to the right the same numbers of place values as the exponents