Answer:
Substitute the x and y values from the ordered pairs into the equation, one by one, until both sides of the equation are equal.
Step-by-step explanation:
A. (-2,-3)
3 * (-2) - 4 * (-3) = 21
-6 + 12 = 21
6 = 21 <u>not equal</u>
B. (0,7)
3 * 0 - 4 * 7 = 21
0 - 28 = 21
- 28 = 21 <u>n</u><u>o</u><u>t</u><u> </u><u>e</u><u>q</u><u>u</u><u>a</u><u>l</u>
C. (7,0)
3 * 7 - 4 * 0 = 21
21 - 0 = 21
21 = 21 <u>equal</u>
Answer: D
Step-by-step explanation:
3(1+x)+7 = 3+3x+7 =3x+10
34-0.5d=l
34-0.5d=26
34-26=0.5d
8=0.5d
8/0.5=d
16=d
16days
Answer: I would say 20%, it makes 100 percent sense!
Step-by-step explanation: Please brainliest!