Tina has $220 in her bank account. cliff has $100 in his bank account. starting in july, tina adds $25 to her account on the first of each month, while cliff adds $35 to his. how many dollars will they have in their accounts when the amounts are the same?

the answer is 520

Step-by-step explanation: you add 25 to tinas account 12 times

then you add 35 to cliffs account 12 times also and they eventually equal 520 ya

answer: group b.

step-by-step explanation:

the solution of the equation is 2.23 ⇒ answer b

step-by-step explanation:

* lets revise the meaning of exponential function

- the form of the exponential function is y = ab^x, where a ≠ 0, b > 0 ,  

  b ≠ 1, and x is any real number

- it has a constant base b

- it has a variable exponent x

- to solve an exponential equation, take the log or ln of both sides,  

  and solve for the variable

* lets solve the problem

∵

- the base is 7 and the exponent is x

- insert ㏑ in both sides

∴

- use the rule

∴ x ㏑(7) = ㏑(77)

- to find x divide both sides by ㏑(7)

∴

* the solution of the equation is 2.23 to the nearest 2 decimal places