12 ÷ 4 x ___ = 12

im so confused on this question can you guys help

Shane can shovel the driveway in 4 hours, but if his sister it would take 2 hours. how long would it take taylor to shovel the driveway alone

Me! last question, and i'm stuck! write the algebraic expression that models the word phrase. the product of 2 divided by the number h and 8 more than the number k

Can someone check if i did this right since i really want to make sure it’s correct. if you do you so much