Answer: A) 10
4+8+21+9+12+6=60
60/6= 10
To find the mean, you’ll add all the numbers and then divided be however many there are.
4x = 2/5 is the same equation
Multiply 1/4 on both sides to clear the 4.
x = (2/5)(1/4) =2/20= 1/10
CHECK
(1/10)* 4= 4/10 = 2/5
90 - 50 = 40
40 / 8 = 5
x = 5
Answer:
32-16=16
16×9=144
Step-by-step explanation:
quantity: the amount of smth
4*(1/2)*4*7(for 4 triangles)+16(for base)= 56+16=72 thats 2nd option
