How did people use a telegraph to communicate without speech? with a series of bellelgi varying pitches
with words typed out on a typewriter
with Morse code
with overland mail carriages

"with Morse code".

Morse code is a technique for transmitting content data as a progression of on-off tones, lights, or snaps that can be straightforwardly comprehended by a learned audience or onlooker without special gear. It is named for Samuel F. B. Morse. Every Morse code sign speaks to either a content character (letter or numeral) or a prosign and is spoken to by a distinct sequence of dabs and dashes.

Explanation:

the real gdp increased by 4.1%

explanation:

might not be right, i think i'm correct, but i might be thinking of last quarter

ok, so basically your gonna start with 350 ok. so there's 60 seconds in a minute so that means you he can go up 10 ft per minute. soo, after 3 minutes he should be at 260 ft after three minutes : )