What is 778.5 million km in scientific notation

Solve for q 8q-15=49

46 Two light houses ash their lights every 30 seconds and 40 seconds respectively. Given that they last ashed together at 10:40 A. M., when will they next ash together? (Chapter 1)

Factor the polynomial - 3x4 - 9x3 + 15x2

Martin completely filled several jars with seashells. Each jar held 9 seashells. He had less than 80 seashells. Make a list of the total number of seashells he could have in all.

2x - 5 > 7 A. x > 6 B. x < 12 C. x < 8 D. x > 12

This, is multiplication variables 2 (5x * 3y) =

Ending time is 10:08 am. Elapsed time 30 min

Paige spends 1 hour on her homework. She spends equal amounts of time on all subjects. If Paige spends 1/2 hour on Spanish, how many subjects does she study? Answers: 3 subjects 1 subject 4 subjects 2 subjects

What is solution for the following system of equations, 2x+8y=4 and x=-3y+5 1) X=14 Y=-3 2) X=2 Y=-3 3) X=-3 Y=-3 4) X=12 Y=5

Some amount of billiard balls were arranged in an equilateral triangle. And 4 balls were extra. When the same set of billiard balls were arranged into triangle in which each side has one more ball than in the first arrangement there were 3 balls