Britain's Prime Minister Liz Truss is promising new policies to deal with the country's economic problems.Here is what she had to say:"I will deliver a bold plan to cut taxes and grow our economy. I will deliver on the energy crisis, dealing with people's energy's bills, but also dealing with the long-term issues we have on energy supply. And I will deliver on the national health service."Truss replaced Boris Johnson as the head of the Conservative Party after winning the party's leadership vote.Johnson agreed to step down earlier this year.Truss officially took the position on Tuesday in a ceremony in Scotland with Queen Elizabeth II of England.Truss becomes Britain's third female Prime Minister, after Margaret Thatcher and Theresa May.Truss became Prime Minister because her Conservative Party still holds the majority in Britain's Parliament.As the party's new leader, she takes over as prime minister without a general election.In her comments, Truss discussed a big concern of Britons: rising food and energy prices.