A. 61 – 4t + 5) and -2(15 – 12t) b. }(20t – 15) and 4 - 3
C. 1.5 - 2t and 0.25(
801)
d. -3(t - 7 + 5t + 8) and -18t -- 3
Are they equivalent

i will pick c put check it over to be sure

step-by-step explanation:

the equivalent expression are always the hardest ones but you look at the gcf also

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

i would you but i don't under stand the qustion

step-by-step explanation: