Only do question 15

50 points

Topic: Percentage

see below

Step-by-step explanation:

The total number of trees is

567+324+156+89+678 =1814

Percent fir = 567/1814 = .312568908=31.26 %

Percent pine = 324/1814 = .178610805=17.86%

Percent larch = 156/1814 =.085997795=8.60%

percent cedar = 89/1814 =.049062845=4.91%

Percent hemlock = 678/1814 = .373759647=37.38%

The total should be 100 %

31.26+17.86+8.60+4.91+37.38=100.01  ( rounding error because we rounded to the hundredths place)

Expanded form - write 5 ( p+6 ) - 5 ( p - 2)  

as an equation  y = 5 (p+6) -5(p-6)

simplifyed form - 40

Step-by-step explanation