30
75% x 40 = 30
R(Rate) x B(Base) = 30 (Percentage)
when Base is N you divide Percentage and Rate
when Rate is N you divide Percentage and Base
when Percentage is N you multiply Rate and Base (or Base and Rate)
Answer:
Step-by-step explanation:
P = B × R
P = 40 × 0.75
P = 30
