Answer:
B I think
Step-by-step explanation:
Answer: 52.5
Step-by-step explanation: 2(3x+10)+2(x+10)=360 because all the sides of a rhombus equal 360 and alternate sides are equal
8x+20=360
-20=-20
8x/8=340/8
x=42.5
x+10. 42.5+10=52.5
D=52.5
X in less than or equal to 4.5. it is this because 32 is the least number of miles per gallon. 144/32=4.5.