Find the values of x for which
a. log(4x^2+1) bsae 10- 2log x base 10 - log 2 base 10 =1
b. log 2x base 2 + log(x+4) base 10=6 is valid
i need a well explained solution

Yoku is putting on sunscreen. he uses 2\text{ ml}2 ml to cover 50\text{ cm}^250 cm 2 of his skin. he wants to know how many milliliters of sunscreen (c)(c) he needs to cover 325\text{ cm}^2325 cm 2 of his skin. how many milliliters of sunscreen does yoku need to cover 325 \text{ cm}^2325 cm 2 of his skin?

Factor the expression using the gcf. the expression 21m−49n factored using the gcf

Which spreadsheet would be used to compute the first nine terms of the geometric sequence a^n=32•(1/2)n-1