Write and solve an equation to answer the question.

9 is what percent of 20?

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9 is
% of 20.

45%

Step-by-step explanation:

9/20 = 45/100 = 45%

to calculate percentage of a number. Use the percentage formula: X/Y = P x 100. the three basic steps to calculating a percentage would be: find P percent of X , find what percent of X is Y , and find X if P percent of it is Y. hope this helps! :)

= 5

step-by-step explanation:

to find the 15th term substitute n = 15 into the nth term formula

= (- 3 × 15 ) + 50 = - 45 + 50 = 5