Find the equation of a line that passes through the point (1,3) and has a gradient of -3. Leave your answer in the form ax + by = c whers a, b,c are integers.​

He weights of 2-pound bags of best dog food are approximately normally distributed with a given mean  and standard deviation  according to the empirical rule, what percentage of the bags will have weights within 3 standard deviations of the mean? 47.5%68%95%99.7%

What is the approximate value of  x  in the equation below.–3.396–0.7080.3040.955

Twice the sum of a number and 2 is equal to three times the difference of the number and 8. find the number.