Which is the best estimate for (2.8 x 10^3)(4.1 x 10^6) written in scientific notation? a) 7 x 10^9 b) 1.2 x 10^6 c) 1.5 x 10^10 d) 12 x 10^18

What is 32+4 x (16 x 1/2) -2 show your work}

Girardo is using the model below to solve the equation . girardo uses the following steps: step 1 add 4 negative x-tiles to both sides step 2 add 1 negative unit tile to both sides step 3 the solution is which step could be adjusted so that gerardo's final step results in a positive x-value? in step 1, he should have added 4 positive x-tiles to both sides. in step 1, he should have added 3 negative x-tiles to both sides. in step 2, he should have added 4 negative unit tiles to both sides. in step 2, he should have added 1 positive unit tile to both sides.

2. explain in words how you plot the point (4, −2) in a rectangular coordinate system.