280*3= 840
3 journals is about 840 grams
Answer:
The answer is

if I am not wrong
Step-by-step explanation:
First you need to convert 45 degress to radians,then you use the arc length formula which is = thr radius * the angle to get the answer
Answer:
k = +4
Step-by-step explanation:
x = 3 is the answer can you pls add me brainliest answer