Choose a system of equations with the same solution as the following system

4x - y = -11
2x + 3y = 5

a.) 12x - 3y = -33
10x - 6y = -38

b.) -4x - 9y = -21
-2x - 7y = 27

c.) 4x + 3y = 5
10x + 5y = -1

d.) 2x- 4y = -16
4x - 4y = 44

Lance lived in portugal and brazil for a total of 14 months to learn portuguese. he learned an average of 130 new words per month when he lived in portugal, and an average of 150 new words per month when he lived in brazil. in total he learned 1920 new words. write a system of equations to represent the situation. use x to represent portugal, and y to represent brazil

In a probability experiment, karen flipped a coin 76 times. the coin landed on heads 32 times. what percentage of the coin flips resulted in tails? round to the nearest percent. a. 58% b. 65% c. 42% d. 60%

Tim open up a new saving account with a $50 deposit and plant to deposit $20 per week into the same account.write an expression to represent the total amount in his savings account.