Answer:
72 marbles are yellow
Step-by-step explanation:
Answer:
-7
Step-by-step explanation:
5-x=12 subtract 5 from both sides to get x alone
-x=7 divide both sides by -1 so that x is positive
x=-7
Answer:
Just multiply the equations
Step-by-step explanation:
for example num 1, 25 x 10 = 250 then 250 x 10 which is 2,500
Answer:
Step-by-step explanation:
Area of figure = area of rectangle 1 + area of rectangle 2 +area of rectangle 3 +area of triangle
= 5*5 + 9*16 +20 * 8 + (1/2) * 3* 3
= 25 + 144 + 160 + 4.5
=333.5 sq. in