Angelina is starting to save $950 to buy a new phone. In February, she saved $5. In March, she saved twice as much as she saved in February, for a total savings of $15 ($5 + $10). If Angelina continues to save twice as much each month as she saved the previous month, in which month will her total savings be enough to buy the phone? How much will she have saved? Once she purchases the phone, how much will she have left over?

the inequality is:

250c+180g≥950

step-by-step explanation:

let c denotes the number of days in a week   miyoko worked as a cryptographer.

and g denotes the number of days in a week she works as a geologist.

now we are given that she earns $250 for every day she works as a cryptographer,and earns $180 for every day she works as a geologist.

now miyoko's goal is to earn more than $950 this week.

hence, the inequality could be represented as:

250c+180g≥950

shift 4 units up, and 1 unit left.

it will translate f(x) = 3^x to g(x) = 3^(x+1) + 4

you can't solve x because it is 2 linear equation and you only have one equation