Sarah competes in a long jump competition
Her first jump is 4.25m
Her best jump is 12% more the this
However her best jump is 15% lower then the winning jump.
Wok out the length of the winning jump.

5.6m

Step-by-step explanation:

4.25 is her first jump and her best is 12% more than that. To find out what her best jump is you'd have to 4.25×1.12=4.76. Since her highest jump is 15% lower than the winning one. So you'd divide her highest by .85

4.76/.85=5.6

c.

step-by-step explanation:

she should of added 9^2 and 12^2. that is because it is a^2+b^2=c^2. c^2 is the hypotenuse and should always be bigger than the other two numbers. which is why she should of added 9 squared and 12 squared together instead of 15 squared.

answer: group b.

step-by-step explanation: