The equation would be 35=5x. ‘x’ is the number of seashells her brother has, and the 5 in front of the x is showing that she has 5 times more than him. to find how many her brother has, divide both sides of the equation by 5 to make the x stand alone. you should then get 7=x, meaning that her brother has 7 shells
Since the bottom shape is a semi-circle, the 3yd is the radius making the triangle's area 7 x 3 / 2 = 10.5
The semi-circle's area is

/2 = 14.14
Combined, you get an area of 10.5 + 14.14 = 24.64
Answer:
1000miles per hour
Step-by-step explanation:
15 gallons
hope this helps. not really sure what you mean by that.