11.) All you've got to do is subtract thirty-eight(38) from eighty-one(81). This will result in 43.
81-38=43
12.) You've got to subtract eighty-seven(87) from ninety(90) which will give you the answer 3.
87-90=3
I got
X+B=4
Let me know if I was right
Fell free to give Brainly if it was it would be a massive help
Answer:
1. 
2. 
Step-by-step explanation:
1a. Y = mx + b
Y = 2x + b
-2 = 2(5) + b
-2 = 10 + b, b = 12
Equation: y = 2x + 12
1b. Standard form: Ax + By = C
subtract 12 and y from both sides
2x - y = -12
Equation: 2x - y = -12
To find the answer, we can first find the age of Rolando in four year:
17+4
=21
We can then proceed to find the current age of Marisa,which is 3/2 of Rolando’s age calculated above:
Let Marisa’s age be y.
3/2 y =21
y = 21 × 2/3
y = 42/3
y = 14
Therefore Marisa is currently 14 years old.
In three years, Marisa would be:
14+3
=17
Therefore, she will be 17 years old.
Hope it helps!
