How can I solve 2x+y=-3

A fraction that is equivalent to 6/-5?

Verify this identity: secx-cosx = 1-cos^2x/cosx

Comparing to Internet service plans plan one cost $34.99 per month plan to cost $134.97 every three months if Crystal plans to stay with one service plan for one year which should she choose how much will she se comparing to Internet service plans

Test 21,753 for divisibility by 2, 3, 5, 9, and 10. A. 2, 3, and 9 B. 3 and 9 C. 2 and 9 D. 3

What is 0.47% written as a decimal

A card is drawn from a standard deck of 52 playing cards. find the probability that the card is an ace or a black card.

Which of the following is true concerning ethics in research

Read the statement given below and choose which of the following arguments proves that the statement is false. If a decimal is non-terminating, then it is irrational. A. 0.25 is non-terminating but is not irrational B. 1.

Sales tax on an item is directly proportional to the cost of the item purchased if the tax on a $600 item is $36 what is the sales tax on a $950 item?

Andy has a collection of blue and green marbles. The number of blue marbles is three times the number of green marbles. If there are 66 blue marbles in his collection how many green marbles are there