x: 1, 2, 3, 4 y: 1, 1.5, 0.5, 4 Find the correlation r for the data. What fraction in the variation of the values of y is explained by a least squares regression line for y as a function of x?

Janet drove 300 miles in 4.5 hours. write an equation to find the rate at which she was traveling

Match each whole number with a rational, exponential expression 3 square root 27^2find the domain and range of the exponential function h(x)=125^x. explain your findings. as x decreases does h increase or decrease? explain. as x increases does h increase or decrease? explain.

One number is 4 less than 3 times a second number. if 3 more than two times the first number is decreased by 2 times the second number, the result is 11. use the substitution method. what is the first number?