How do I do THIS because I don’t know how to do THIS

Answer:
630
Step-by-step explanation:
if you descend (90) feet PER minute,
Equation ( 90 X 7 = X )
Sentence ---- If you are descending at a rate of 90 feet per. minute, and you descend for 7 minutes, you would multiply the feet to the minute to see how far you descended for that amount minutes.