**Answer:**

3/2;5/2

**Step-by-step explanation:**

-1+4/2 ; 4+1/2

3/2 ; 5/2

**Answer:**

75%

**Step-by-step explanation:**

%

**Answer:**

Area of circle A =113.14 mm²

Area of circle b = 314.29 mm²

Area of circle C = 452.57 mm²

Area of circle A = 254.57 mm²

2.25 times

**Step-by-step explanation:**

Area of a circle = nr²

where n = 22/7

r = radius

Circle A's radius = 6mm

Circle B's radius = 6mm + 4mm = 10mm

Circle C's radius = 10mm + 2mm = 12mm

Circle D's radius = 12mm - 3mm = 9mm

Area of circle A = (22/7) x 6² = 113.14 mm²

Area of circle b = (22/7) x 10² = 314.29 mm²

Area of circle C = (22/7) x 12² = 452.57 mm²

Area of circle A = (22/7) x 9² = 254.57 mm²

Number of times the area of circle D is greater than that circle A = Area of circle D / Area of circle A

254.57 mm² / 113.14 mm² = 2.25 times

Makaylah: 7371 / 250

Keisha: 4731
/ 250

Kelviona: 8871
/250

Janell: 2217
/125

(i dont know the divison part)

**Answer:**

x= 45

**Step-by-step explanation:**

x= -15*-3

x= 45