Which change will triple the lateral surface area of a regular triangular pyramid with base length b, height h, and slant height l?

By tripling the base length.

Step-by-step explanation:

The surface area of a regular triangular pyramid is:

By tripling the base length, the surface area of the regular triangular pyramid is tripled.

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