Mhanifa can you please help? This is due asap! Look at the pic attached below. I will mark brainliest. Guys please don't put random answers thanks :)

What signals you that factoring by grouping is the best method to use when factoring a problem?

Cal's go cart has a gas tank with the dimensions shown below. he uses a gas can that holds 11 gallon of gas, to fill the go cart tank. 11 gallon = 231 inches^3 how many full gas cans will it take to fill the go cart's gas tank?

Walking at a constant rate of 8 kilometers per hour, juan can cross a bridge in 6 minutes. what is the length of the bridge in meters?