Find the equation of a line through P(5,1,3) in the direction of A=i+4j-2k in parametric and symmetric form

What is the simplified form of (3.25x10^3)(7.8x10^6) written in scientific notation?

Rob spent 25%, percent more time on his research project than he had planned. he spent an extra h hours on the project. which of the following expressions could represent the number of hours rob actually spent on the project? two answers

Macy spent $36 on jeans. this was $12 less than twice what she spent on a shirt. which equation to solve this, 12x=36 2x=36-12 2x-12=36 12-2x=36