The population of a city is 83,945 and grows continuously at a rate of 1.3% each year. what is the approximate population of the city in 21 years?

Aline passes through the point (2, -4) and has a slope of 0, what is the equation of the line? plz fast

(a) calculate the molarity of a solution that contains 0.0345 mol nh4cl in 400 ml of solution. (b) how many moles of hno3 are present in 35.0 ml of a 2.20 m solution of nitric acid? (c) how many milliliters of 1.50 m koh solution are needed to supply 0.125 mil of koh ?

Translate the word phrase into a math expression. 15 fewer than the product of 4 and a number. (pls immediately)