Each month,liz pays $35 to her phone company just to use the phone.each text she sends costs her an additional $0.05 part a : in march,her phone bill was $72.60,how many text messages did she send? part b : in april,her phone bill was $65.85,how many text did she send?

Part A: 752 texts

Part B: 617 texts

Part A: So if Liz pays $35 each month just to use the phone then we can subtract 35 from the total bill that month to get the total cost she spent on text messages
March: $72.60- $35= $37.60
April: $65.85- $35= $30.85
Now you divide the amount of money spent on texts by the cost of one text message to get the amount of texts she sent that month. 
March: $37.60/ $0.05= 752
April: $30.85/ $0.05= 617
Therefore, she sent 752 text messages in March and 617 in April.

Hope this helps!

96 students attend the Chess Club every Wednesday.

800 is 100% of the population. We simply multiply 12% to the population of 800 to get its value.

800 x 12% = 96 students

To check: divide 96 by 800 to get its percentage.

96 / 800 = 0.12 x 100% = 12%

96 students is equivalent to 12% of 800, the school's total population.