What is the value of the expression 7 - 5^2 x 3 - 4^3

Which conjunction is disjunction is equivalent to the given absolute value inequality? |x+2|< 18

Which shows the correct substitution of the values a, b and c from the equation 1=-2x+3x^2+1

The marked price of an article is 25% above its selling price and the cost price is 30% less than its marked price . find the discount percent and gain percent. only a brainlest can solve it i will mark you brainlest