Y + 0.4 = 2 .....subtract 0.4 from both sides
y = 2 - 0.4
y = 1.6 <==
Hmmm wait let me try to do it
Answer: 60
Step-by-step explanation: 60 because if you do 3×20 You get 60 which is higher than 50 and lower than 100 :)
21/30 as a percent would be 70%.
Answer: A) 45 ft
Step-by-step
The yardstick is 3ft tall since 1 yard = 3ft. It is 3 times as tall as its shadow. The tree has a 15ft long shadow. The tree should also be 3 times as tall as its shadow. The tree is 15*3ft tall, so it is 45ft tall. I attached an image of the diagram I made.