Fifteen minus three times a number equals negative twenty-one find the number

Will give brainliest! Which is NOT correctly written in scientific notation? a: 7.0 X 104 b: 8.001 x 101 c: 1 X 102 d:0.6 X 10-1

Perimeter of a rectangle 4 meters by 14 meters

Fill the solution to the following equations

Factor 5x2 + 10x + 2x + 4

How do you solve cos^2 x = 1 + sinx in the interval (0, 2π) ?

A 5 ounce can of tuna cost $.90 a 12 ounce can of tuna cost $2.40 which is the better bye

Solve equation 2 (x+4) = - 5x + 1 show each step

To choose a sample for a survey of seventh graders, the student council puts pieces of paper with the names of all the seventh graders in a bag and selects 20 names. Is it ransom sample or a biased sample. Explain.

The radius of a basketball is 4.7 inches what is the volume of the basketball round to the nearest ten

1) 3x^2 + 4x + 5x^2 - 5y 2) (4x - 2y) - (2x + 5y) 3) 3x^3 (4x^2) 4) 5 x cubed y to the fourth z all divided by 10 x y squared z cubed 5) (-8a^3b^4) ^2 6) (x + 6) (x - 6) 7) (2x - 7) ^2 8) (2x + 5) (3x - 7) 9) 5 x cubed y plus x y to the fourth plus