263.27 m^2
rectangle : 15 x 10 = 150 m^2
the half circle at the top has a diameter of 6m. therefore, it’s radius is 3m. if it is cut in half, the part removed from the triangle height is 3m. therefore, the height of the triangle is 35 -15 = 20; 20 - 3 = 17. the height of the triangle is 17. the triangle area formula is a = 1/2(bh).
a = 1/2 (10)(17)
a = 1/2 (170)
a = 85 m^2
the circle would be a = πr^2 but divided by 2 bc it’s a half circle
a = π(3)^2
a = π9
a = 28.27 m^2
150 + 85 + 28.27 = 263.27 m^2
Answer is : 3x+4 the second one
Answer:
= 

Step-by-step explanation:
let the number be x , then :
six added to twice the sum of a number and four means :

one half of the difference of three and the number means :


combining the two , we have
= 

His estimate is reasonable. But only if Michael is less than 2 years old.