Answer:
x=21
Step-by-step explanation:
100+3x+x-4=180
100+4x-4=180
96+4x=180
4x=180-96
4x=84
24 girls
24:12
2:1
circumference=>2πr
circumference= 119.32 cm
π = 3.14
r =?
119.32 = 2 × 3.14 × r
r = 119.32/6.28
r = 19 cm
so area = πr²
area = 3.14 × (19)²
area = 3.14 × 361
area = 1,133.54 cm²
4.34
2.48/40=0.062 per ounce
0.062 x 70 = 4.32 for 70 ounces
