Using symbols. There are 3 shelves. Each shelf has 21 books. How many books are there in all?

X^2 + 3x + c = 7/4 + c. What is the value of c?

Dan sold 150,000 candies at the fair. he sold 10 times more candy this year than last year. how many candies did Dan sell last year?

What is the interquartile range of the data? 120, 140, 150, 195, 203, 226, 245, 280 235.5 90.5 54 160 What is the interquartile range of the data? 53, 62, 67, 71, 83, 94, 102, 105 33.5 62 98 1 62.5

A cell phone company charges each customer a base rate of $15.00 per month for its services. The company also charges each customer $0.02 per minute used. Which algebraic expression represents each customer's monthly charge for m minutes?

Solve the inequality for v V-6<13

The table below shows the values of f (x) and g (x) for different values of x. One of the functions is a quadratic function, and the other is an exponential function.

Solve the equation 2xlog3=x-1log7

Evaluate 104 + (-46) - (-32)

Como puedo resolver esto paso paso? (5,03+2,58) - 4,93

Create an algebraic expression that uses at least two different operations with a minimum of 3 terms, 2 variables, 2 coefficients, and one constant.