Mrs. kennedy is buying pencils for each of 315 students iat hamilton elematery. the pencils are sold in box of tens. how can she use rounding to decide how many pencils to buy. write to explain

Three consecutive integers exist where the smallest is fifteen less than twice the larger. Find the integers

Tell which number is greater 27/50,27%

The variable z varies jointly with x and y. Also, z=-75 when x=3 and y=-5 what is the constant of variation

X^3-7x^2y+13xy^2+5y^3/x-2y

Abcd is similar to wxyz. rectangle abcd has a length of 8 inches and height of 5 inches. wxyz has a height of 3ft what is the length in inches

What is the degree of a polynomial that has roots of - 2, 4i and - 4i?

What is the x value in the solution to the system of linear equations 2x - y = 11 and x + 3y = - 5

How do you find the tangent of a circle?

Greatest common factor of 15 and 30 and 45

Assume that the following confidence interval for the difference in the mean time (in minutes) for male students to complete a statistics test (sample 1) and the mean time for female students to complete a statistics test (sample 2) was constructed