Vivian is making keychains with beads she wants each keychain to have the same number of beads she has 12 blue beads and 21 yellow beads what is the greatest number of key chains she can make with exactly the same

Write 5(6x+4)-2(5x-2) in the form a(bx+c) where a, b and c integers and a> 1

Astudent is determining the influence of different types of food on the growth rate of spiders. she feeds one group of spiders two caterpillars twice a week. the other group received similarly-sized beetles twice a week. she records the amount of time required for individuals to reach sexual maturity. her hypothesis is that the spiders feeding on caterpillars will have a faster growth rate because caterpillars have a higher protein content compared to beetles. in this experiment, what is the dependent variable? spiders assigned to different feeding groups. time required to reach sexual maturity number of prey items fed twice a week. growth rates of each group.

Could someone give me some steps on how to solve piecewise functions?