Answer:
let required no be x

by doing crisscrossed multiplication

42=7x
dividing both side by 7

6=x
therefore x=6
therefore value of remaining no.is 6
Answer:
It is a reflection of the y axis, with 2 units down. :)
Step-by-step explanation:
-2y + 6 < 10
Subtract 6 on both sides
-2y < 10
Divide by -2 on both sides
y > -5
Hope this helps! Just in case you don’t understand the final answer, when dividing or multiplying by a negative number you flip the sign!
Answer:
13
Step-by-step explanation:
count on your fingers
the domain of f(x)=9-x^2 is (-∞,∞), {x|x ∈r}