Answer:
a=1.5, b= 3
Step-by-step explanation:
sum of all sides will give us perimeter. Therefore
2a+b+6a+2b+1+4a=28
12a+3b+1=28
12a+3b=27....eqn1
since t two sides of this isosceles triangle are equal:
2a+b=4a
2a=b
substituting 
in the first equation whenever we encounter a we will have:
6b+3b=27
9b=27
b=3
therefore 
Answer:
the 1st one
Step-by-step explanation:
4+3+2= 9, so 2 yellow out of all 9 is 2/9.
Answer:
$94.50
Step-by-step explanation:
3(50)=150 $1.50
4(40)=160 160(5)=800 $8.00
5(50)=250 250(10)=2500 $25.00
6(40)=240 240(25)=6000 $60.00
60+25+8+1.5=$94.50
Answer:
b
Step-by-step explanation:
