Three similar reasons about crabs and seashells that are the same about a crab and seashells

How to figure out algebra

Alicia took a friend to dinner for her birthday. The total bill for dinner was $30.69 (including tax and a tip). If Alicia paid a 21.5% tip, what was her bill prior to adding the tip?

Can someone explain to me binomial and polynomials?

2x (11x3) + x2 (11x1) + 2x (1x3)

On monday, 397 students went on a trip to the zoo. All 7 buses were filled with and 5 students had to travel n cars. How many students were in each bus?

What is 56/108? they are even numbers so they can be simplified but I don't know how to do it right.

99 33 11 3 2/3 what comes next

There are 4 dogs at each corner. They each see three dogs. How many dogs are there?

Reflect (7,3) in (a) the x-axis and (b) the y axis

10) In a neighborhood 60% of the houses have a garage and a fenced in backyard. Given that 80% of the houses in the neighborhood have a garage, what is the probability that a house has a fenced in backyard given that it has a garage?