Its 30 you find the unit rate by 21÷7 which equals 3 then you multipy 3x10 which gives you 30
Answer:
70°
Step-by-step explanation:
it's an acute angle so it couldn't be 110 since that would make it obtuse.
The slope is 2 and the y intercept is 4
answer is 5.58
wait I explain it in some time
