What is the correct answer written in standard form

a) (7 x 10^5) x (3 x 10^2)

b) (2 x 10^5) / (4 x 10^2)

If I flip pi/2, wil it be 2pi?

The difference between three times a number and 7 is 14

Find the x-intercept of the rational function. A rational function is graphed in the second quadrant, and in the first, third and fourth quadrants are other pieces of the graph. The graph crosses the x axis at 6 and crosses the y axis at negative 2.

Lena is 10 years old. She asks her dad how old he is. He tells her that the lcm of their ages is 14 times the hcf of their ages. She knows that her dad is at least 30 years old but younger than 45. Work out how old her dad is.

Assume that two marbles are drawn without replacement from a box with 1 blue, 3 white, 2 green, and 2 red marbles. find the probability of the indicated result. 20) both marbles are red.

The smiths spend 8% of their budget on entertainment. Their total budget this year is $2000 more than last year and this year they plan to spend $3840 on entertainment. What was their total budget last year?

You need to guess on a multiple-choice question that has four options. What are the odds that you choose the correct answer? 1/3 3/1 1/4 4/1 note * i picked 1/4 the first time and it was wrong so im confused

One year there was a total of 84 commercial and noncommercial orbital launches worldwide.

Given a dilation with the origin O (0, 0), by observation determine the scale factor "K." DO, K = (5, 0) (15, 0) What is the scale factor K

Erica ran 3/8 mile. Maria ran 3/4 mile. Who ran farther?