What is 7/10 - 1/2 in simplest form

What is the point-slope form of the equation for the line with a slope of -2 that passes through (1,4)?

The table shows the balance of a money market account over time. write a function that represents the balance y(in dollars) after t years.

Many newspapers carry a certain puzzle in which the reader must unscramble letters to form words. how many ways can the letters of emdangl be arranged? identify the correct unscrambling, then determine the probability of getting that result by randomly selecting one arrangement of the given letters.