Answer:
a general guideline for beginners, opt for a rope that's 3 feet taller than you. More experienced jumpers may want to use a shorter jump rope, which will rotate more quickly for faster jumps
Wat does that mean?
Step-by-step explanation:
Twice means muliply by 2
The difference of a number and 7 means subtract a number/variable and 7
Is equal to 9 means =9
2(X - 7) = 9
right angles