You can use a number line to add and subtract
Your answer is J. because descending means it’s getting smaller
Y=2x+6
gradient is found from the formula,

y intercept is found by subbing the values of (-1,4) into the equation y=2x+c
Answer:
C) r= C/ 2π
Step-by-step explanation:
C=2πr
C/2=πr
C/2π=r
Answer:x=15
Step-by-step explanation:
You should collect the like terms first
21-6=x
Therefore
X=15