Calculate the word count, character count, and estimated reading and speaking time of the text.
Calculate the costs of carpooling and share fuel and wear costs among passengers.
Calculate voltage, current, resistance, and power using Ohm's law when you know two…
Calculate the weighted average, for example, the average of grades weighted by credits.
Solve the system of equations a₁x + b₁y = c₁ and a₂x + b₂y =…
Convert a decimal number to a simplified fraction or a fraction to a decimal number.
Solve the unknown number in the proportion by cross-multiplying: a : b = c : x.
Calculate the difference between two percentage values in percentage points and the relative change in percentages.
Calculate the standard deviation and variance of a data set (sample or population), mean, and median.
Factor a number into its prime factors and see the divisors, the number of divisors, and whether the number is prime.