Answer:
20% decrease
Step-by-step explanation:
step one- subtract
30-24=6
step 2 is divide
amount of change from step one÷beginning val
6/30=.2
convert to %
.2=20%
it is a decrease as the value 30 went down to 24
4,000,000 and 20,000,000 miles²
let x be the area of one desert then 5x is the area of the other
sum = x + 5x = 24,000,000
6x = 24,000,000
divide both sides by 6
x = 4,000,000
one desert is 4,000,000 miles²
and the other is (5 × 4,000,000)= 20,000,000 miles²
Answer:39
it would be b for 1 since 7 would be negative and the 3 would be positive