Use the system of equations to answer the question. 5x - 2y = 21
3x + 4y = 10
What is the solution to the system of equations?
A. -4, -1/2
B. -4, 1/2
C. 4, -1/2
D. 4, 1/2

Arefrigeration system at your company uses temperature sensors fixed to read celsius (°c) values, but the system operators in your control room understand only the fahrenheit scale. you have been asked to make a fahrenheit (°f) label for the high temperature alarm, which is set to ring whenever the system temperature rises above –10°c. what fahrenheit value should you write on the label?

Suppose you are choosing a 6-digit personal access code. this code is made up of 4 digits chosen from 1 to 9, followed by 2 letters chosen from a to z. any of these digits or letters can be repeated. find the total number of personal access codes that can be formed. 492,804 341,172 39,917,124 4,435,236

Ineed to know the ordered pairs for this equation i need the answer quick because it’s a timed test