Find all values of k that result in the following system only having one answer:

2x+y=7

y-kx=3

(no explanation needed)

In problems like - 20≤5y, when you divide by 5 do you reverse the symbol because - 20 is negative?

From a standard deck of cards ... pulling an ace or a king.

Which property justifies the fact that 8 (d-5) is equivalent to 8d-40

A jar contains 6 red jelly beans, 6 green jelly beans, and 6 blue jelly beans. If we choose a jelly bean, then another jelly bean without putting the first one back in the jar, what is the probability that the first jelly bean will be green and the

Which of the following is the product of complex numbers below? (3-2i) (5+i)

3 divided by 57 answer

What is 20x+5y=15 for y?

The next term of the sequence is 48. (2, 4, 8, 16, 32, ...)

A motorboat left a harbor and traveled to an island at an average rate of 10 knots. The average speed on the return trip was 10 knots. If the total trip took 4.0 hours, how far is the harbor from the island?

Which polynomial is in standard form? 1+2x-8^2+6x^3 2x^2+6x^3-9x+12 6x^3+5x-3x^2+2 2x^3+4x^2-7x+5