Are of circle = πr² = 22/7 *4*4 = 50.27cm²
The answer is 17 and 19/25
Answer:
a= 40
Step-by-step explanation:
-5a + 7.5a - 25 = 53.2 + 21.8
add like terms on both sides: 2.5a - 25 = 75
add 25 on both sides: 2.5a = 100
divide both sides by 2.5: a = 40
30×4=120 then multiply 75×4=340 then add 120+340=460
Max value of x is infinite and min value of x is 0
