A math teacher had $100 to buy three different types of calculators. A basic calculator costs $8. A scientific calculator costs twice the price as the basic while a graphing calculator costs thrice the price as the scientific. How much change did she receive after buying those three different types of calculators?
Як омӯзгори математика $100 дошт, то се намуди гуногуни ҳисобкунакҳоро харидорӣ кунад. Ҳисобкунаки оддӣ $8 арзиш дорад. Ҳисобкунаки илмӣ ду маротиба нархи ҳисобкунаки оддиро арзиш дорад, дар ҳоле ки ҳисобкунаки графикӣ се маротиба нархи ҳисобкунаки илмиро арзиш дорад. Вай пас аз харидани ин се намуди гуногуни ҳисобкунакҳо чанд пул баргардонида гирифт?
How much does a scientific calculator cost? ** A scientific calculator costs $8 x 2 = $<<8*2=16>>16.
How much does a graphing calculator cost? ** A graphing calculator costs $16 x 3 = $<<16*3=48>>48.
How much did she spend? ** So, she spent $8 + $16 + $48 = $<<8+16+48=72>>72 for the three calculators.
How much change did she receive? ** Therefore, the math teacher received $100 - $72 = $<<100-72=28>>28 change.
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How much does a scientific calculator cost? ** A scientific calculator costs $8 x 2 = $<<8*2=16>>16.  
How much does a graphing calculator cost? ** A graphing calculator costs $16 x 3 = $<<16*3=48>>48.  
How much did she spend? ** So, she spent $8 + $16 + $48 = $<<8+16+48=72>>72 for the three calculators.  
How much change did she receive? ** Therefore, the math teacher received $100 - $72 = $<<100-72=28>>28 change.  
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