Answer:
20
Step-by-step explanation:
collect like terms and divide both sides
42% of 100 is 42 so 42% of is half of the first answer, therefore the answer is 21.
Complementary angles will add up to be 90°, none of these answers add together to be 90 so I’m unsure.
I believe #7 is c but i dont know the other one
Answer:
Percentage Change Formula
Step-by-step explanation:
Percent change can be applied to any quantity you measure over time. If the price increased use the formula
((New Price - Old Price) / Old Price) × 100
If the price decreased flip the first part to
((Old price - new price)
and then follow the rest of the formula.
