A= 1
B= -5
C= 10
In order to figure it out, you can think about it like this..
Answer:
i think the answer is a
Step-by-step explanation:
a yard = 3 feet
1 foot * 3 = yard
It is going to be 3/10 because you simplify 6 blue/ 20 total marbles
Let x be the amount of cement and y be the amount of sand. If <span>the ratio of cement to sand for mortar is 1:3, then

and y=3x.
</span>
So, if <span>Sandy puts in x=7 shovels of cement, then she puts

shovels of sand.
</span><span>
</span><span>
Answer: 21 shovels of sand.
</span>
Answer:
B
Step-by-step explanation:
The closed circle at -
indicates that x can equal this value
The open circle at
indicates that x cannot equal this value.
All values of x between -
and
are valid, thus
-
≤ x <
→ B