Samuel has $100 in his savings account before he makes a deposit of $80. After 2 weeks, he withdraws $80. How did Samuel’s savings account balance change?

the formula for the equation of a circle is (x – h)2+ (y – k)2 = r2, where (h, k) represents the coordinates of the center of the circle, and r represents the radius of the circle. if a circle is tangent to the x-axis at (3,0), this means it touches the x-axis at that point.

we need to divide the number of toy dinosaurs, 156, by the number of brothers, 4:

in order to estimate, we can use compatible numbers:

156 ÷ 4

  ↓

160   ÷ 4 = 40        

the correct answer is a).

answer is  

minor arc – sw

major arc – stu

semicircle – wst

i got it down chief.